title: [Sick sinus syndrome].
mesh_terms: D001146:Arrhythmia, Sinus / Q000175:diagnosis*; D002908:Chronic Disease; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013577:Syndrome
vernacular_title: Sindrom slabosti sinusovogo uzla