Effects of the cardioselective beta-blocker metoprolol in angina pectoris. A subacute study with exercise tests.O Keyriläinen, A UustialoAnnals of clinical research1975The effects of the cardioselective beta-blocker, metoprolol, were evaluated under double-blind conditions in eighteen patients with angina pectoris. During an introductory run-in period of eight… (More)