[Differences in the structure of the human heart conduction system and their significance for electrocardiography].
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D008875:Middle Aged
Razlichiia v stroenii provodiashcheĭ sistemy serdtsa cheloveka i ikh znachenie dlia élektrokardiografii.