Elwood, PC; Cochrane, AL; Burr, ML; Sweetnam, PM; Williams, G; Welsby, E; Hughes, SJ; Renton, R. A randomized controlled trial of acetyl Salicylic Acid in the secondary prevention of mortality from myocardial infarction (англ.) // British Medical Journal : journal. — 1974. — 9 March (vol. 1, no. 5905). — P. 436—440. — doi:10.1136/bmj.1.5905.436. — PMID4593555. — PMC1633246.
The Caerphilly and Speedwell Collaborative Group. Caerphilly and Speedwell collaborative heart disease studies (англ.) // Journal of Epidemiology and Public Health : journal. — 1984. — September (vol. 38, no. 3). — P. 259—262. — doi:10.1136/jech.38.3.259. — PMID6332166. — PMC1052363.
Elwood, PC; Cochrane, AL; Burr, ML; Sweetnam, PM; Williams, G; Welsby, E; Hughes, SJ; Renton, R. A randomized controlled trial of acetyl Salicylic Acid in the secondary prevention of mortality from myocardial infarction (англ.) // British Medical Journal : journal. — 1974. — 9 March (vol. 1, no. 5905). — P. 436—440. — doi:10.1136/bmj.1.5905.436. — PMID4593555. — PMC1633246.
The Caerphilly and Speedwell Collaborative Group. Caerphilly and Speedwell collaborative heart disease studies (англ.) // Journal of Epidemiology and Public Health : journal. — 1984. — September (vol. 38, no. 3). — P. 259—262. — doi:10.1136/jech.38.3.259. — PMID6332166. — PMC1052363.