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John Witton

Observed names: J. Witton, JOHN WITTON, John Witton
OpenAlex ID: A5110195556
Systematic review of the Hawthorne effect: New concepts are needed to study research participation effects
2013 · Jim McCambridge, John Witton, et al. · Journal of Clinical Epidemiology · 3,076
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Causal association between cannabis and psychosis: examination of the evidence
2004 · Louise Arseneault, Mary Cannon, et al. · The British Journal of Psychiatry · 924
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Global statistics on addictive behaviours: 2014 status report
2015 · Linda R. Gowing, Robert L. Ali, et al. · Addiction · 433
The Effects of Demand Characteristics on Research Participant Behaviours in Non-Laboratory Settings: A Systematic Review
2012 · Jim McCambridge, Marijn de Bruin, et al. · PLoS ONE · 323
Reductions in criminal convictions after addiction treatment: 5-year follow-up
2005 · Michael Gossop, Katia Trakada, et al. · Drug and Alcohol Dependence · 151
Can Research Assessments Themselves Cause Bias in Behaviour Change Trials? A Systematic Review of Evidence from Solomon 4-Group Studies
2011 · Jim McCambridge, Kaanan Butor-Bhavsar, et al. · PLoS ONE · 108
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Cannabis Use and Dependence: Public Health and Public Policy
2004 · JOHN WITTON · Addiction · 92
Factors associated with the prescribing of buprenorphine or methadone for treatment of opiate dependence
2008 · Gayle Ridge, Michael Gossop, et al. · Journal of Substance Abuse Treatment · 50
Cannabis use in adolescents: the impact of risk and protective factors and social functioning
2005 · DAVID BEST, SAMANTHA GROSS, et al. · Drug and Alcohol Review · 48
Assessment and management of cannabis use disorders in primary care
2010 · A. R. Winstock, C. Ford, et al. · BMJ · 32
Dual diagnosis in a Primary Care Group (PCG) (100,000 population locality): a step-by-step epidemiological needs assessment and design of a training and service response model
2005 · Geraldine Strathdee, Victoria Manning, et al. · Research Portal (King's College London) · 22
Cannabis as a potential causal factor in schizophrenia
2004 · Louise Arseneault, Mary Cannon, et al. · Cambridge University Press eBooks · 21
Online training for substance misuse workers: A systematic review
2017 · Robert Calder, Tom Ainscough, et al. · Drugs Education Prevention and Policy · 20
Cannabis use and the GP: brief motivational intervention increases clinical enquiry by GPs in a pilot study.
2003 · Jim McCambridge, John Strang, et al. · Europe PMC (PubMed Central) · 18
Adolescent psychological health problems and delinquency among volatile substance users in a school sample in South London
2004 · David Best, Victoria Manning, et al. · Drugs Education Prevention and Policy · 13
Dual diagnosis screening: preliminary findings on the comparison of 50 clients attending community mental health services and 50 clients attending community substance misuse services
2002 · V. C. Manning, G. Strathdee, et al. · Journal of Substance Use · 13
From the deal to the needle: Drug purchasing and preparation among heroin users in drug treatment in South London
2004 · David Best, Tracy Beswick, et al. · Addiction Research & Theory · 12
Causal Association Between Cannabis and Psychosis: Examination of the Evidence
2007 · Louise Arseneault, Mary Cannon, et al. · FOCUS The Journal of Lifelong Learning in Psychiatry · 11
In celebration of sensible drinking
2007 · David Ball, Richard Williamson, et al. · Drugs Education Prevention and Policy · 8
Dangerousness of Drugs: A Guide To The Risks and Harms Associated with Substance Misuse
2003 · David Best, Samantha Gross, et al. · PsycEXTRA Dataset · 8
Perspectives on the Pharmacological Treatment of Heroin Addiction
2017 · Alyson J Bond, John Witton · Clinical Medicine Insights Psychiatry · 7
They Do Things Differently over There: Doctors, Drugs, and the “British System” of Treating Opiate Addiction
2005 · John Witton, Francis Keaney, et al. · Journal of Drug Issues · 6
Cannabis and Mental Health
2010 · John Witton, Kylie Reed · International Journal of Clinical Reviews · 5
The risk of drug swallowing at the point of arrest: An analysis of 24 cocaine-related deaths following police care or custody in England and Wales
2004 · David Best, Siobhan Havis, et al. · Policing & Society · 5
''Loucura do baseado'' revisitada: maconha e psicose
2004 · John Witton, Robin M Murray · Brazilian Journal of Psychiatry · 5
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Works count: 45
Citation count: 5,423
H-index: 14
I10-index: 18
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