Diagnosis and treatment of sick sinus syndrome.
D000368:Aged; D001285:Atropine; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D008297:Male; D008516:Medicine, Chinese Traditional; D008875:Middle Aged; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000175:diagnosis* / Q000628:therapy
D001285:Atropine