title: Significance of the sinus-node recovery time.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001146:Arrhythmia, Sinus / Q000175:diagnosis; D001285:Atropine / Q000627:therapeutic use; D001919:Bradycardia / Q000503:physiopathology; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D012849:Sinoatrial Node / Q000502:physiology*; D013610:Tachycardia / Q000503:physiopathology; D013997:Time Factors
chemical_list: D001285:Atropine