title: [Atrioventricular block on 2 levels: bradydependent nodal Samoĭlov-Wenckenbach period and fixed block of the 1st degree in the three-bundle area].
mesh_terms: D001283:Atrioventricular Node / Q000503:physiopathology; D001919:Bradycardia / Q000503:physiopathology; D002036:Bundle of His / Q000503:physiopathology; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology
vernacular_title: Atrioventrikuliarnaia blokada na dvukh urovniakh: bradizavisimaia uzlovaia periodika Samoĭlova-Venkebakha i fiksirovannaia blokada I stepeni v trekhpuchkovoĭ oblasti.