[Electro- and phonocardiographic studies before and after mitral commissurotomy in children].
D000293:Adolescent; D002648:Child; D004562:Electrocardiography; D006801:Humans; D008946:Mitral Valve Stenosis / Q000175:diagnosis / Q000601:surgery*; D010701:Phonocardiography
lektro- i fonokardiograficheskoe issledovanie do i posle mitral'noĭ komissurotomii u deteĭ.