title: [Sick sinus syndrome--tachycardia-bradycardia syndrome and nodal abnormality].
mesh_terms: D000328:Adult; D000368:Aged; D001146:Arrhythmia, Sinus / Q000175:diagnosis* / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology*