Citation:Peto R, Gray R, Collins R, Wheatley K, Hennekens C, Jamrozik K, et al 1988
From National Cancer Control Policy
Peto R, Gray R, Collins R, Wheatley K, Hennekens C, Jamrozik K, et al. Randomised trial of prophylactic daily aspirin in British male doctors. Br Med J (Clin Res Ed) 1988 Jan 30;296(6618):313-6 Available from: http://www.ncbi.nlm.nih.gov/pubmed/3125882.
Critical appraisals