title: [Sick sinus syndrome. Clinical and electrophysiological study].
mesh_terms: D000200:Action Potentials; D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012804:Sick Sinus Syndrome / Q000503:physiopathology*; D012849:Sinoatrial Node / Q000503:physiopathology*
vernacular_title: Zespół chorego wezła zatokowego. Studium kliniczne i elektrofizjologiczne.