Rule: give only decaffeinated coffee to cardiac patients.
D000818:Animals; D001145:Arrhythmias, Cardiac / Q000139:chemically induced*; D002110:Caffeine / Q000009:adverse effects*; D003069:Coffee / Q000009:adverse effects*; D003327:Coronary Disease / Q000139:chemically induced; D004285:Dogs; D006801:Humans
D003069:Coffee; D002110:Caffeine