[The rhythm of cardiac contractions in healthy and sick children].
D000293:Adolescent; D002648:Child; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D012213:Rheumatic Fever / Q000503:physiopathology*; D014069:Tonsillitis / Q000503:physiopathology*
O ritme sokrashcheniĭ serdtsa u zdorovykh i bol'nykh deteĭ.