The cardiac arrhythmia suppression trial.
D000368:Aged; D000813:Anilides / Q000627:therapeutic use; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D016700:Encainide; D005424:Flecainide / Q000627:therapeutic use; D006801:Humans; D008297:Male
D000813:Anilides; D005424:Flecainide; D016700:Encainide