title: [CORRELATION BETWEEN ELECTRICAL AND MECHANICAL SYSTOLES AND HEART RHYTHM IN NORMAL CHILDREN].
mesh_terms: D035843:Biomedical Research; D002320:Cardiovascular Physiological Phenomena; D002648:Child; D004562:Electrocardiography; D006321:Heart; D006339:Heart Rate; D006801:Humans; D010827:Physiology; D013599:Systole
keywords: CHILD; CLINICAL RESEARCH; ELECTROCARDIOGRAPHY; HEART; HEART RATE; PHYSIOLOGY
vernacular_title: SOOTNOSHENIE 'ELEKTRICHESKO I I MEKHANICHESKO I SISTOL I RITMA SERDTSA U ZDOROVYKH DETE I.