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John-Kåre Vederhus

John-Kåre Vederhus

Professor

Department of Psychososial Health >

 

+47 916 10 859

Vederhus works at the Addiction Unit, Sørlandet Hospital, Norway and have 20+ years of clinical practice in the SUD treatment field. His thesis described a Twelve step facilitation study on the local detoxification ward. He is involved in several research project closely related to the clinical practice at the hospital, e.g., drop-out from SUD treatment, quality of life studies, alcohol use assessment on medical wards, co-dependency and SUD treatment outcome research.

Research interests

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Projects

  • Validation of a revised measure of codepency into Norwegian
    Goal: A revised instrument; the Composite Codepency Scale, a 19-item measure designed to assess codependent traits wil be validated for use in the Norwegian addiction treatment field (Marks et al. Development and validation of a revised measure of codepencey. Aust Jour of Psychology, 2012; 64: 119 - 127). Data will be collected among close relatives of patients with a substance use disorder (SUD) enrolled in a psychoeducation program at the Addiction Unit, Sørlandet Hospital, Kristiansand, Norway. These data will be compared with an online data collection among the general public.

  • QEEG and Neurofeedback in in the Treatment of Substance Use Disorders: A Randomized Controlled Trial. Karin Berle Gabrielsen & John-Kåre Vederhus
    Goal: Assess the use of infralow neurofeedback in the treatment of addiction in an out-patient setting.

  • A qualitative study about Narcotics Anonymous (NA). John-Kåre Vederhus & Magnhild Høie
    Goal: 1. How is the Higher Power concept understood in NA
    Goal: 2. Reasons for disengagement

Selected publications

  1. Karlsson A, Vederhus JK, Clausen T, Weimand B, Solli KK, Tanum L. Levels of Impulsivity, Hyperactivity, and Inattention and the Association with Mental Health and Substance Use Severity in Opioid-Dependent Patients Seeking Treatment with Extended-Release Naltrexone. J. Clin. Med. 2021, 10(19), 4558. 
  2. Haugland SH, Carvalho B, Stea TH, Strandheim A, Vederhus JK. Associations between parental alcohol problems in childhood and adversities during childhood and later adulthood: a cross-sectional study of 28047 adults from the general population. Substance Abuse Treatment, Prevention, and Policy. 2021; 16: 47.
  3. Birkeland B, Weimand B, Ruud T, Mayberry D, Vederhus JK. Perceived family cohesion, social support, and quality of life in patients undergoing treatment for substance use disorders compared with patients with mental and physical disorders. Addiction Science & Clinical Practice 2021; 16: 44.
  4. Vederhus JK, Timko C, Haugland, SH. Adverse childhood experiences and impact on quality of life in adulthood – development and validation of a short difficult childhood questionnaire in a large population-based health survey. QoL Life Res. Doi: 10.1007/s11136-021-02761-0. E-pub ahead of print.
  5. Vederhus JK, Høie M, Birkeland B. One size doesn’t fit all: a thematic analysis of interviews with people who have stopped participating in Narcotics Anonymous in Norway. Addiction Science & Clinical Practice. 2020; 15: 18
  6. Drivenes K, Haaland VØ, Hauge YL, Vederhus JK, Irgens AC, Solli KK, Regevik H, Falk RS, Tanum L. Discrepancy in Ratings of Shared Decision Making Between Patients and Health Professionals: A Cross Sectional Study in Mental Health Care. Front Psychol. 11:443. Doi: 10.3389/fpsyg.2020.00443
  7. Drivenes K, Vederhus JK, Haaland VØ, Ruud T, Hauge YL, Regevik H, Falk RS, Tanum L. Enabling patients to cope with psychotropic medication in mental health care. Medicine (Open) 2020; 99 (1) – e18635
  8. Vederhus JK, Rørendal M, Bjelland C, Skar AKS, Kristensen Ø. Can a Smartphone App for Cannabis Cessation Gain a Broader User Group than Traditional Treatment Services? Substance Abuse: Research and Treatment 2020; 14:1-9
  9. Vederhus JK, Kristensen Ø, Timko C. How do psychological characteristics of family members affected by substance use influence quality of life? Quality of Life Research 2019; 28 (8): 2161-2170
  10. Vederhus JK, Høie M. The Pragmatic Believer – Faith Development and Personal Experiences of a ‘Higher Power” in Seasoned Members of Narcotics Anonymous. Research in the Social Scientific Study of Religon. Vol 29;123-144 https://doi.org/10.1163/9789004382640_008
  11. Birkeland B, Weimand BW, Ruud T, Høie MM, Vederhus JK. Parenting partners: perceived quality of life when the other parent has a substance use disorder or severe somatic or mental illness. Health and Quality of Life outcomes 2017, 15:172
  12. Vederhus JK, Birkeland B, Clausen T. Perceived quality of life, 6 months after detoxification: is abstinence a modifying factor? Qual Life Res. 2016, 25 (9), 2315–2322 
  13. Opsal A, Vederhus JK, Kristensen Ø, Clausen T. Perceived coercion to enter treatment among involuntarily and voluntarily admitted patients with substance use disorders. BMC Health Services Research 2016, 16:656
  14. Pasareanu A, Vederhus JK, Opsal A, Kristensen Ø, Clausen T. Improved drug-use patterns at 6 months post-discharge from inpatient substance use disorder treatment: results from compulsorily and voluntarily admitted patients. BMC Health Services Research. 2016; 16:291
  15. Vederhus JK, Clausen T, Humphreys K. Assessing understandings of substance use disorders among Norwegian treatment professionals, patients and the general public. BMC Health Services Research 2016, 16:52
  16. Vederhus JK, Pripp A, Clausen T. Quality of Life in Patients with Substance Use Disorders Admitted to Detoxification Compared With Those Admitted to Hospitals for Medical Disorders: Follow-up Results. Substance abuse: Research & Treatment. 2016: 10, 31 – 37. Doi: 10.4137/SART.S39192
  17. Vederhus JK, Zemore S, Rise J, Clausen T, Høie M. Predicting patient post-detoxification engagement in 12-step groups with an extended version of the theory of planned behavior. Addiction Science & Clinical Practice 2015, 10:15
  18. Vederhus JK, Timko C, Kristensen Ø, Hjemdahl B, Clausen T. Motivational intervention to enhance post-detoxification 12-step group affiliation: a randomized controlled trial. Addiction 2014;109(5):766-73. doi: 10.1111/add.12471
  19. Vederhus JK, Timko C, Kristensen Ø, Clausen T. The courage to change: Patients’ perception of 12-step fellowships. BMC Health Services Research 2011, 11:339
  20. Vederhus JK, Laudet A, Kristensen Ø,Clausen T. Obstacles to 12-step groups participation as seen by addiction professionals: Comparing Norway to the United States. Journal of Substance Abuse Treatment. 2010; 39(3): 210 – 217. DOI:10.1016/j.jsat.2010.06.001
  21. Vederhus JK, Kristensen Ø, Laudet A, Clausen T. Attitudes towards 12-step groups and referral practices in a 12-step naive treatment culture; a survey of addiction professionals in Norway. BMC Health Serv Res. 2009: 9, 147
  22. Kunøe N, Lobmaier P, Vederhus JK, Hjerkinn B, Hegstad S, Gossop M, Kristensen Ø, Waal H. Naltrexone implants after in-patient treatment for opioid dependence: randomised controlled trial. The British Journal of Psychiatry. 2009: 194, 541-546

Scientific publications

  • Bjørnestad, Endre Dahlen; Vederhus, John-Kåre; Clausen, Thomas (2024). Change in self-reported somatic symptoms among patients in opioid maintenance treatment from baseline to 1-year follow-up. BMC Psychiatry. ISSN: 1471-244X. 24 (1). doi:10.1186/s12888-024-05590-w.
  • Bjørnestad, Endre Dahlen; Vederhus, John-Kåre; Clausen, Thomas (2024). Change in substance use among patients in opioid maintenance treatment: baseline to 1-year follow-up. Harm Reduction Journal. ISSN: 1477-7517. 21 (1). s 101. doi:10.1186/s12954-024-01005-x.
  • Gabrielsen, Karin Berle; Clausen, Thomas; Haugland, Siri Håvås; Vederhus, John-Kåre (2024). Gradual improvement in functioning and mental distress during long-term outpatient SUD treatment – A prospective pre-post study. Addictive Behaviors Reports. ISSN: 2352-8532. 19s 1 - 8. doi:10.1016/j.abrep.2024.100525.
  • Vederhus, John-Kåre; Timko, Christine; Birkeland, Bente; Haugland, Siri Håvås; Gabrielsen, Karin Berle (2024). Validation of an ultra-short global quality of life scale in a large population-based health survey. PLOS ONE. ISSN: 1932-6203. 19 (8). doi:10.1371/journal.pone.0307539.
  • Weimand, Bente Margrethe; Karlsson, Ann Tarja; Solli, Kristin Klemmetsby; Vederhus, John-Kåre; Mordal, Jon; Digranes, Linn Camilla Wergeland; Tanum, Lars Håkon Reiestad (2023). Characteristics of opioid-dependent patients choosing antagonist treatment with extended-release naltrexone compared with patients in opioid maintenance treatment in Norway. Heroin Addiction and Related Clinical Problems. ISSN: 1592-1638. 25 (4). s 5 - 14.
  • Vederhus, John-Kåre; Haugland, Siri Håvås; Timko, Christine (2022). A mediational analysis of adverse experiences in childhood and quality of life in adulthood. International Journal of Methods in Psychiatric Research. ISSN: 1049-8931. 31 (1). doi:10.1002/mpr.1904.
  • Gallefoss, Lisbeth; Gabrielsen, Karin Berle; Haugland, Siri Håvås; Clausen, Thomas; Vederhus, John-Kåre (2022). Effects of a brief pre‑admission telephone reminder on no‑show and dropout rates in substance use disorder treatment: a quasi‑experimental study. Substance Abuse Treatment, Prevention, and Policy. ISSN: 1747-597X. 17 (1). doi:10.1186/s13011-022-00489-9.
  • Bjørnestad, Endre Dahlen; Vederhus, John-Kåre; Clausen, Thomas (2022). High smoking and low cessation rates among patients in treatment for opioid and other substance use disorders. BMC Psychiatry. ISSN: 1471-244X. 22 (1). s 1 - 8. doi:10.1186/s12888-022-04283-6.
  • Karlsson, Ann Tarja; Vederhus, John-Kåre; Clausen, Thomas; Weimand, Bente Margrethe; Solli, Kristin Klemmetsby; Tanum, Lars Håkon Reiestad (2022). Impact of Impulsivity, Hyperactivity, and Inattention on Discontinuation Rate among Opioid-Dependent Patients Treated with Extended-Release Naltrexone. International Journal of Environmental Research and Public Health (IJERPH). ISSN: 1661-7827. 19 (18). s 1 - 8. doi:10.3390/ijerph191811435.
  • Gabrielsen, Karin Berle; Clausen, Thomas; Haugland, Siri Håvås; Hollup, Stig Arvid; Vederhus, John-Kåre (2022). Infralow neurofeedback in the treatment of substance use disorders: a randomized controlled trial. Journal of Psychiatry & Neuroscience. ISSN: 1180-4882. 47 (3). s 222 - 229. doi:10.1503/jpn.210202.
  • Vederhus, John-Kåre; Rørendal, Malin; Skårdal, Madelene; Næss, Marianne Otterstad; Clausen, Thomas; Kristensen, Øistein (2022). Successful outcomes with low–threshold intervention for cannabis use disorders in Norway - an observational study. PLOS ONE. ISSN: 1932-6203. 17 (6). s 1 - 12. doi:10.1371/journal.pone.0269988.
  • Friesinger, Jan Georg; Haugland, Siri Håvås; Vederhus, John-Kåre (2022). The significance of the social and material environment to place attachment and quality of life: findings from a large population-based health survey. Health and Quality of Life Outcomes. ISSN: 1477-7525. 20doi:10.1186/s12955-022-02045-2.
  • Vederhus, John-Kåre; Timko, Christine; Haugland, Siri Håvås (2021). Adverse childhood experiences and impact on quality of life in adulthood: development and validation of a short difficult childhood questionnaire in a large population-based health survey. Quality of Life Research. ISSN: 0962-9343. 30s 1769 - 1778. doi:10.1007/s11136-021-02761-0.
  • Haugland, Siri Håvås; Olivieira Vieira de Carvalho, Barbara; Stea, Tonje Holte; Strandheim, Arve; Vederhus, John-Kåre (2021). Associations between parental alcohol problems in childhood and adversities during childhood and later adulthood: a cross-sectional study of 28047 adults from the general population. Substance Abuse Treatment, Prevention, and Policy. ISSN: 1747-597X. 16doi:10.1186/s13011-021-00384-9.
  • Karlsson, Ann Tarja; Vederhus, John-Kåre; Clausen, Thomas; Weimand, Bente; Solli, Kristin Klemmetsby; Tanum, Lars Håkon Reiestad (2021). Levels of impulsivity, hyperactivity, and inattention and the association with mental health and substance use severity in opioid-dependent patients seeking treatment with extended-release naltrexone. Journal of Clinical Medicine. ISSN: 2077-0383. 10 (19). s 1 - 9. doi:10.3390/jcm10194558.
  • Birkeland, Bente; Weimand, Bente; Ruud, Torleif; Maybery, Darryl; Vederhus, John-Kåre (2021). Perceived family cohesion, social support, and quality of life in patients undergoing treatment for substance use disorders compared with patients with mental and physical disorders. Addiction science & clinical practice. ISSN: 1940-0632. 16 (1). s 1 - 9. doi:10.1186/s13722-021-00252-8.
  • Vederhus, John-Kåre; Rørendal, Malin; Bjelland, Cathrine; Skar, Anja Kristin Solheim; Kristensen, Øistein (2020). Can a Smartphone App for Cannabis Cessation Gain a Broader User Group than Traditional Treatment Services?. Substance Abuse: Research and Treatment. ISSN: 1178-2218. 14s 1 - 9. doi:10.1177/1178221820902237.
  • Drivenes, Karin; Haaland, Vegard Øksendal; Hauge, Yina Luk; Vederhus, John-Kåre; Irgens, Audun Campbell; Solli, Kristin Klemmetsby; Regevik, Hilde; Falk, Ragnhild Sørum; Tanum, Lars Håkon Reiestad (2020). Discrepancy in ratings of shared decision making between patients and health professionals: A cross sectional study in mental health care. Frontiers in Psychology. ISSN: 1664-1078. 11:443s 1 - 10. doi:10.3389/fpsyg.2020.00443.
  • Drivenes, Karin; Vederhus, John-Kåre; Haaland, Vegard Øksendal; Ruud, Torleif; Hauge, Yina Luk; Regevik, Hilde; Falk, Ragnhild Sørum; Tanum, Lars Håkon Reiestad (2020). Enabling patients to cope with psychotropic medication in mental health care: Evaluation and reports of the new inventory MedSupport. Medicine. ISSN: 0025-7974. 99 (1). s 1 - 8. doi:10.1097/MD.0000000000018635.
  • Vederhus, John-Kåre; Høie, Magnhild; Birkeland, Bente (2020). One size doesn't fit all: A thematic analysis of interviews with people who have stopped participating in Narcotics Anonymous in Norway. Addiction science & clinical practice. ISSN: 1940-0632. 15 (18). doi:10.1186/s13722-020-00191-w.
  • Vederhus, John-Kåre; Kristensen, Øistein; Timko, Christine (2019). How do psychological characteristics of family members affected by substance use influence quality of life?. Quality of Life Research. ISSN: 0962-9343. 28 (8). s 2161 - 2170. doi:10.1007/s11136-019-02169-x.
  • Heldal, Anne Taraldsen; Skurtveit, Svetlana; Lobmaier, Philipp Paul K.; Vederhus, John-Kåre; Bramness, Jørgen Gustav (2018). Bruk av medikamenter for alkoholbrukslidelser i Norge 2004–16. Tidsskrift for Den norske legeforening. ISSN: 0029-2001. 138 (18). doi:10.4045/tidsskr.18.0383.
  • Årseth, Anne Lene; Johannessen, Berit; Vederhus, John-Kåre (2018). No increase in in-patient detoxification completion rates following pre-hospital telephone intervention. Sykepleien Forskning. ISSN: 1890-2936. s 1 - 16. doi:10.4220/Sykepleienf.2018.73348.
  • Vederhus, John-Kåre; Høie, Magnhild (2018). The Pragmatic Believer – Faith Development and Personal Experiences of a ‘Higher Power’ in Seasoned Members of Narcotics Anonymous. Research in the Social Scientific Study of Religion. ISSN: 1046-8064. 29s 123 - 144. doi:10.1163/9789004382640_008.
  • Pasareanu, Adrian Razvan; Vederhus, John-Kåre; Opsal, Anne; Kristensen, Øistein; Clausen, Thomas (2017). Mental distress following inpatient substance use treatment, modified by substance use; comparing voluntary and compulsory admissions. BMC Health Services Research. ISSN: 1472-6963. 17:5s 1 - 9. doi:10.1186/s12913-016-1936-y.
  • Birkeland, Bente; Weimand, Bente; Ruud, Torleif; Høie, Magnhild; Vederhus, John-Kåre (2017). Perceived quality of life in partners of patients undergoing treatment in somatic health, mental health, or substance use disorder units: A cross-sectional study. Health and Quality of Life Outcomes. ISSN: 1477-7525. 15 (1). doi:10.1186/s12955-017-0750-5.
  • Vederhus, John-Kåre; Clausen, Thomas; Humphreys, Keith (2016). Assessing understandings of substance use disorders among Norwegian treatment professionals, patients and the general public. BMC Health Services Research. ISSN: 1472-6963. 16 (1). doi:10.1186/s12913-016-1306-9.
  • Pasareanu, Adrian Razvan; Vederhus, John-Kåre; Opsal, Anne; Kristensen, Øistein; Clausen, Thomas (2016). Improved drug-use patterns at 6 months post-discharge from inpatient substance use disorder treatment: Results from compulsorily and voluntarily admitted patients. BMC Health Services Research. ISSN: 1472-6963. 16:291doi:10.1186/s12913-016-1548-6.
  • Opsal, Anne; Kristensen, Øistein; Vederhus, John-Kåre; Clausen, Thomas (2016). Perceived coercion to enter treatment among involuntarily and voluntarily admitted patients with substance use disorders. BMC Health Services Research. ISSN: 1472-6963. 16 (1). s 1 - 10. doi:10.1186/s12913-016-1906-4.
  • Vederhus, John-Kåre; Birkeland, Bente; Clausen, Thomas (2016). Perceived quality of life, 6 months after detoxification: Is abstinence a modifying factor?. Quality of Life Research. ISSN: 0962-9343. 25 (9). s 2315 - 2322. doi:10.1007/s11136-016-1272-z.
  • Vederhus, John-Kåre; Pripp, Are Hugo; Clausen, Thomas (2016). Quality of Life in Patients with Substance Use Disorders Admitted to Detoxification Compared with Those Admitted to Hospitals for Medical Disorders: Follow-Up Results. Substance Abuse: Research and Treatment. ISSN: 1178-2218. 10s 31 - 37. doi:10.4137/SART.S39192.
  • Dunsæd, Frode; Kristensen, Øistein; Vederhus, John-Kåre; Clausen, Thomas; Høie, Magnhild (2016). Standardisert avrusning ved blandingsmisbruk. Tidsskrift for Den norske legeforening. ISSN: 0029-2001. 136 (19). s 1639 - 1642. doi:10.4045/tidsskr.16.0308.
  • Solhaug, Pål; Høie, Magnhild; Vederhus, John-Kåre (2015). Endring i psykisk velvære etter gjennomført 12-trinnsbasert rusbehandling - En sammenligning av dag- og døgnbehandling. Tidsskrift for psykisk helsearbeid. ISSN: 1503-6707. 12 (1). s 28 - 38.
  • Vederhus, John-Kåre; Rysstad, Ole; Gallefoss, Frode; Clausen, Thomas; Kristensen, Øistein (2015). Kartlegging av alkoholbruk og røyking hos pasienter innlagt i medisinsk avdeling. Tidsskrift for Den norske legeforening. ISSN: 0029-2001. 135 (14). s 1251 - 1255. doi:10.4045/tidsskr.14.0848.
  • Vederhus, John-Kåre; Zemore, Sarah E.; Rise, Jostein; Clausen, Thomas; Høie, Magnhild (2015). Predicting patient post-detoxification engagement in 12-step groups with an extended version of the theory of planned behavior. Addiction science & clinical practice. ISSN: 1940-0632. 10doi:10.1186/s13722-015-0036-3.
  • Pasareanu, Adrian Razvan; Opsal, Anne; Vederhus, John-Kåre; Kristensen, Øistein; Clausen, Thomas (2015). Quality of life improved following in-patient substance use disorder treatment. Health and Quality of Life Outcomes. ISSN: 1477-7525. 13doi:10.1186/s12955-015-0231-7.
  • Vederhus, John-Kåre; Timko, Christine; Kristensen, Øistein; Hjemdal, Bente; Clausen, Thomas (2014). Motivational intervention to enhance post-detoxification 12-Step group affiliation: A randomized controlled trial. Addiction. ISSN: 0965-2140. 109 (5). s 766 - 773. doi:10.1111/add.12471.
  • Vederhus, John-Kåre (2013). Tvangsinnleggelse av rusmiddelavhengige - noen etiske aspekter. Makt og avmakt. Etiske perspektiver på feltet psykisk helse. ISBN: 978-82-92712-74-0. Portal forlag. Del 5, kapittel 16. s 242 - 260.
  • Vederhus, John-Kåre; Hjerkinn, Bjørg; Kristensen, Øistein (2011). Selvhjelpsgrupper for rusmiddelavhengige. Tidsskrift for Den norske legeforening. ISSN: 0029-2001. 131 (12). s 1204 - 1206. doi:10.4045/tidsskr.11.0068.
  • Vederhus, John-Kåre; Timko, Christine; Kristensen, Øistein; Clausen, Thomas (2011). The courage to change: Patient perceptions of 12-Step fellowships. BMC Health Services Research. ISSN: 1472-6963. 11doi:10.1186/1472-6963-11-339.
  • Kunøe, Nikolaj; Lobmaier, Phillip; John-Kåre, Vederhus; Hjerkinn, Bjørg; Gossop, Michael; Hegstad, Solfrid; Kristensen, Øistein; Waal, Helge (2010). Challenges to antagonist blockade during sustained-release naltrexone treatment. Addiction. ISSN: 0965-2140. 105 (9). s 1633 - 1639. doi:10.1111/j.1360-0443.2010.03031.x.
  • Vederhus, John-Kåre; Laudet, Alexandre; Kristensen, Øistein; Clausen, Thomas (2010). Obstacles to 12-step group participation as seen by addiction professionals: Comparing Norway to the United States. Journal of Substance Abuse Treatment. ISSN: 0740-5472. 39 (3). s 210 - 217. doi:10.1016/j.jsat.2010.06.001.
  • Kunøe, Nikolaj; Lobmaier, Phillip; Vederhus, John-Kåre; Hjerkinn, Bjørg L; Hegstad, Solfrid; Gossop, Michael; Kristensen, Øistein; Waal, Helge (2010). Retention in naltrexone implant treatment for opioid dependence. Drug and Alcohol Dependence. ISSN: 0376-8716. 111 (1-2). s 166 - 169. doi:10.1016/j.drugalcdep.2010.03.021.
  • Vederhus, John-Kåre; Kristensen, Øistein; Laudet, Alexandre; Clausen, Thomas (2009). Attitudes towards 12-step groups and referral practices in a 12-step naive treatment culture; a survey of addiction professionals in Norway. BMC Health Services Research. ISSN: 1472-6963. 9doi:10.1186/1472-6963-9-147.
  • Vederhus, John-Kåre; Kristensen, Øistein; Laudet, Alexandre; Clausen, Thomas (2009). Attitudes towards 12-step groups and referral practices in a 12-step naive treatment culture; a survey of addiction professionals in Norway.. BMC Health Services Research. ISSN: 1472-6963. 9doi:10.1186/1472-6963-9-147.
  • Vederhus, John-Kåre; Kristensen, Øistein; Laudet, Alexandre; Clausen, Thomas (2009). Attitudes towards 12-step groups and referral practices in a treatment culture unfamiliar to 12-step ideology; a survey study. BMC Health Services Research. ISSN: 1472-6963. 9 (147).
  • Kunøe, Nikolaj; Lobmaier, Philipp Paul; Vederhus, John Kåre; Hjerkinn, Bjørg; Hegstad, Solfrid; Gossop, Michael; Kristensen, Øistein; Waal, Helge (2009). Naltrexone implants after in-patient treatment for opioid dependence: randomised controlled trial. British Journal of Psychiatry. ISSN: 0007-1250. 194s 541 - 546. doi:10.1192/bjp.bp.108.055319.
  • Kunøe, Nikolaj; Lobmaier, Phillip; Vederhus, John Kåre; Hjerkinn, Bjørg; Hegstad, Solfrid; Gossop, Michael; Kristensen, Øistein; Waal, Helge (2009). Naltrexone implants after in-patient treatment for opioid dependence: randomised controlled trial. British Journal of Psychiatry. ISSN: 0007-1250. 194 (6). s 541 - 546. doi:10.1192/bjp.bp.108.055319.
  • Vederhus, John-Kåre; Kristensen, Øistein; Tveit, Helga; Clausen, Thomas (2008). Tolvtrinnsbaserte selvhjelpsgrupper en ressurs i rehabiliteringen av rusmiddelavhengige. Tidsskrift for Norsk Psykologforening. ISSN: 0332-6470. 45 (10). s 1268 - 1275.
  • Vederhus, John-Kåre; Kristensen, Øistein (2006). High effectiveness of self-help programs after drug addiction therapy. BMC Psychiatry. ISSN: 1471-244X. 6doi:10.1186/1471-244X-6-35.
  • Kristensen, Øistein; Lølandsmo, Terje; Isaksen, Åse; Vederhus, John-Kåre; Clausen, Thomas (2006). Treatment of polydrug-using opiate dependents during withdrawal: towards a standardisation of treatment. BMC Psychiatry. ISSN: 1471-244X. doi:10.1186/1471-244X-6-54.
  • Bjørnestad, Endre Dahlen; Vederhus, John-Kåre; Clausen, Thomas (2022). High smoking and low cessation rates among patients in treatment for opioid and other substance use disorders.

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Last changed: 8.10.2021 13:10