Figure 1. Data from the b-Blocker Heart Attack Trial (BHAT) showing survival curve for patients who had a myocardial infarction and were treated with either a b-adrenergic blocking agent (propranolol) or placebo.

(Adapted and reproduced with the permission of the publishers and authors from: A randomized trial of propranolol in patients with acute myocardial infarction. I. Mortality results. JAMA 1982 Mar 26;247(12)1707-14 Figure 1.)³⁰