title: [ELECTRICAL AND MECHANICAL SYSTOLE IN RHEUMATISM IN CHILDREN AND THEIR CHANGES UNDER THE INFLUENCE OF CONTROLLED PHYSICAL EFFORT].
mesh_terms: D002648:Child; D004560:Electricity; D004562:Electrocardiography; D005080:Exercise Test; D006334:Heart Function Tests; D006801:Humans; D005082:Physical Exertion; D012216:Rheumatic Diseases; D012214:Rheumatic Heart Disease; D013599:Systole
keywords: ELECTROCARDIOGRAPHY; EXERCISE TEST; EXERTION; HEART FUNCTION TESTS; RHEUMATIC HEART DISEASE
vernacular_title: ELEKTRICHESKAIA I MEKHANICHESKAIA SISTOLA PRI REVMATIZME U DETE I I EE IZMENENIIA POD VLIIANIEM DOZIROVANNYKH FIZICHESKIKH NAGRUZOK.