title: [Different electrocardiographic patterns of Wenckebach's period].
mesh_terms: D000328:Adult; D000368:Aged; D001283:Atrioventricular Node / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged
vernacular_title: Rózne postacie elektrokardiograficzne periodyki Wenckebacha.