Eagle KA, Kline-Rogers E, Goodman SG, Gurfinkel EP, Avezum A, Flather MD, Granger CB, Erickson S, White K, Steg PG. Adherence to evidence-based therapies after discharge for acute coronary syndromes: an ongoing prospective, observational study. The American Journal of Medicine. 2004 Jul;117(2):73–81. doi: 10.1016/j.amjmed.2003.12.041.