title: Appraisal of sinus nodal recovery time in patients with sick sinus syndrome.
mesh_terms: D000368:Aged; D001146:Arrhythmia, Sinus / Q000503:physiopathology; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D001285:Atropine; D001919:Bradycardia / Q000503:physiopathology; D006328:Cardiac Catheterization; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D012849:Sinoatrial Node / Q000503:physiopathology*; D013577:Syndrome; D013610:Tachycardia / Q000503:physiopathology
chemical_list: D001285:Atropine