| Adverse events associated with medium‐and long‐term use of opioids for chronic non‐cancer pain: an overview of Cochrane Reviews C Els, TD Jackson, D Kunyk, VG Lappi, B Sonnenberg, R Hagtvedt, ... Cochrane Database of Systematic Reviews, 2017 | 375 | 2017 |
| ACOEM practice guidelines: opioids for treatment of acute, subacute, chronic, and postoperative pain KT Hegmann, MS Weiss, K Bowden, F Branco, K DuBrueler, C Els, ... Journal of occupational and environmental medicine 56 (12), e143-e159, 2014 | 116 | 2014 |
| High‐dose opioids for chronic non‐cancer pain: an overview of Cochrane Reviews C Els, TD Jackson, R Hagtvedt, D Kunyk, B Sonnenberg, VG Lappi, ... Cochrane Database of Systematic Reviews, 2023 | 96 | 2023 |
| Flexible, dual-form nicotine replacement therapy or varenicline in comparison with nicotine patch for smoking cessation: a randomized controlled trial HE Tulloch, AL Pipe, C Els, MJ Clyde, RD Reid BMC medicine 14, 1-10, 2016 | 58 | 2016 |
| A double-blind placebo controlled trial of paroxetine in the management of social phobia (social anxiety disorder) in South Africa DJ Stein, M Berk, C Els, RA Emsley, L Gittelson, D Wilson, R Oakes, ... South African Medical Journal 89 (3), 1999 | 56 | 1999 |
| Psychiatric co-morbidity in South African HIV/AIDS patients C Els, W Boshoff, C Scott, W Strydom, G Joubert, E Van der Ryst South African Medical Journal 89 (9), 1999 | 54 | 1999 |
| Human rights violations in organ procurement practice in China NW Paul, A Caplan, ME Shapiro, C Els, KC Allison, H Li BMC Medical Ethics 18, 1-9, 2017 | 48 | 2017 |
| Historical development and current status of organ procurement from death-row prisoners in China KC Allison, A Caplan, ME Shapiro, C Els, NW Paul, H Li BMC medical ethics 16, 1-7, 2015 | 42 | 2015 |
| ACOEM practice guidelines: opioids and safety-sensitive work KT Hegmann, MS Weiss, K Bowden, F Branco, K DuBrueler, C Els, ... Journal of occupational and environmental medicine 56 (7), e46-e53, 2014 | 39 | 2014 |
| Varenicline: mode of action, efficacy, safety and accumulated experience salient for clinical populations S Tonstad, C Arons, H Rollema, I Berlin, P Hajek, K Fagerström, C Els, ... Current medical research and opinion 36 (5), 713-730, 2020 | 37 | 2020 |
| The quit experience and concerns of smokers with psychiatric illness HE Tulloch, AL Pipe, MJ Clyde, RD Reid, C Els American Journal of Preventive Medicine 50 (6), 709-718, 2016 | 31 | 2016 |
| Peer Reviewed: Development and Introduction of a Comprehensive Tobacco Control Policy in a Canadian Regional Health Authority C Els, D Kunyk, G Predy, M Haase Preventing Chronic Disease 4 (2), 2007 | 29 | 2007 |
| A bidirectional path analysis model of smoking cessation self‐efficacy and concurrent smoking status: Impact on abstinence outcomes M Clyde, A Pipe, R Reid, C Els, H Tulloch Addiction biology 24 (5), 1034-1043, 2019 | 27 | 2019 |
| American College of Occupational and Environmental Medicine. ACOEM practice guidelines: opioids for treatment of acute, subacute, chronic, and postoperative pain KT Hegmann, MS Weiss, K Bowden, F Branco, K DuBrueler, C Els, ... J Occup Environ Med 56 (12), e143-e159, 2014 | 27 | 2014 |
| Impact of cannabis use on road traffic collisions and safety at work: systematic review and meta-analysis C Els, TD Jackson, RT Tsuyuki, H Aidoo, G Wyatt, D Sowah, D Chao, ... Canadian Journal of Addiction 10 (1), 8-15, 2019 | 26 | 2019 |
| Serotonergic targets in the treatment of antidepressant induced sexual dysfunction: a pilot study of granisetron and sumatriptan M Berk, DJ Stein, A Potgieter, CM Maud, C Els, ML Janet, E Viljoen International clinical psychopharmacology 15 (5), 291-295, 2000 | 26 | 2000 |
| Characteristics and prognostic factors for return to work in public safety personnel with work-related posttraumatic stress injury undergoing rehabilitation DP Gross, GS Rachor, SS Yamamoto, BD Dick, C Brown, A Senthilselvan, ... Journal of occupational rehabilitation, 1-17, 2021 | 21 | 2021 |
| Flexible and extended dosing of nicotine replacement therapy or varenicline in comparison to fixed dose nicotine replacement therapy for smoking cessation: Rationale, methods … H Tulloch, A Pipe, C Els, D Aitken, M Clyde, B Corran, RD Reid Contemporary clinical trials 38 (2), 304-313, 2014 | 16 | 2014 |
| Task and barrier self-efficacy among treatment-seeking smokers with current, past or no psychiatric diagnosis M Clyde, H Tulloch, R Reid, C Els, A Pipe Addictive Behaviors 46, 65-69, 2015 | 14 | 2015 |
| Addiction is a mental disorder, best managed in a (public) mental health setting—but our system is failing us C Els The Canadian Journal of Psychiatry 52 (3), 167-169, 2007 | 14 | 2007 |
