| Electronic cigarettes for smoking cessation J Hartmann-Boyce, H McRobbie, AR Butler, N Lindson, C Bullen, R Begh, ... Cochrane database of systematic reviews, 2021 | 1346 | 2021 |
| A randomized trial of e-cigarettes versus nicotine-replacement therapy P Hajek, A Phillips-Waller, D Przulj, F Pesola, K Myers Smith, N Bisal, J Li, ... New England Journal of Medicine 380 (7), 629-637, 2019 | 1313 | 2019 |
| Outcome criteria in smoking cessation trials: proposal for a common standard R West, P Hajek, L Stead, J Stapleton Addiction 100 (3), 299-303, 2005 | 1121 | 2005 |
| Effect of maintenance therapy with varenicline on smoking cessation: a randomized controlled trial S Tonstad, P Tønnesen, P Hajek, KE Williams, CB Billing, KR Reeves, ... Jama 296 (1), 64-71, 2006 | 891 | 2006 |
| Electronic cigarettes for smoking cessation and reduction H McRobbie, C Bullen, J Hartmann‐Boyce, P Hajek Cochrane Database of systematic reviews, 2014 | 780 | 2014 |
| E-cigarettes: an evidence update A McNeill, LS Brose, R Calder, SC Hitchman, P Hajek, H McRobbie Public Health England 3 (6), 14-15, 2015 | 674 | 2015 |
| Electronic cigarettes: review of use, content, safety, effects on smokers and potential for harm and benefit P Hajek, JF Etter, N Benowitz, T Eissenberg, H McRobbie Addiction 109 (11), 1801-1810, 2014 | 662 | 2014 |
| Relapse prevention interventions for smoking cessation P Hajek, LF Stead, R West, M Jarvis, J Hartmann‐Boyce, T Lancaster Cochrane database of systematic reviews, 2013 | 595 | 2013 |
| Interventions for preventing weight gain after smoking cessation AC Farley, P Hajek, D Lycett, P Aveyard Cochrane database of systematic reviews, 2012 | 472 | 2012 |
| Patterns of electronic cigarette use and user beliefs about their safety and benefits: An I nternet survey ML Goniewicz, EO Lingas, P Hajek Drug and alcohol review 32 (2), 133-140, 2013 | 401 | 2013 |
| Randomised controlled trial of nasal nicotine spray in smoking cessation G Sutherland, JA Stapleton, MAH Russell, MJ Jarvis, P Hajek, M Belcher, ... The Lancet 340 (8815), 324-329, 1992 | 401 | 1992 |
| Severity of withdrawal symptoms as a predictor of outcome of an attempt to quit smoking RJ West, P Hajek, M Belcher Psychological medicine 19 (4), 981-985, 1989 | 356 | 1989 |
| Efficacy of a nicotine lozenge for smoking cessation S Shiffman, CM Dresler, P Hajek, SJA Gilburt, DA Targett, KR Strahs Archives of Internal Medicine 162 (11), 1267-1276, 2002 | 344 | 2002 |
| Randomized comparative trial of nicotine polacrilex, a transdermal patch, nasal spray, and an inhaler P Hajek, R West, J Foulds, F Nilsson, S Burrows, A Meadow Archives of internal medicine 159 (17), 2033-2038, 1999 | 343 | 1999 |
| Evaluation of the mood and physical symptoms scale (MPSS) to assess cigarette withdrawal R West, P Hajek Psychopharmacology 177, 195-199, 2004 | 284 | 2004 |
| Nicotine content of electronic cigarettes, its release in vapour and its consistency across batches: regulatory implications ML Goniewicz, P Hajek, H McRobbie Addiction 109 (3), 500-507, 2014 | 281 | 2014 |
| Stopping smoking shortly before surgery and postoperative complications: a systematic review and meta-analysis K Myers, P Hajek, C Hinds, H McRobbie Archives of internal medicine 171 (11), 983-989, 2011 | 274 | 2011 |
| Brief intervention during hospital admission to help patients to give up smoking after myocardial infarction and bypass surgery: randomised controlled trial P Hajek, TZ Taylor, P Mills Bmj 324 (7329), 87-89, 2002 | 225 | 2002 |
| What happens to anxiety levels on giving up smoking? R West, P Hajek American Journal of Psychiatry 154 (11), 1589-1592, 1997 | 222 | 1997 |
| A comparison of the abuse liability and dependence potential of nicotine patch, gum, spray and inhaler R West, P Hajek, J Foulds, F Nilsson, S May, A Meadows Psychopharmacology 149, 198-202, 2000 | 216 | 2000 |
