title: [RADIOELECTROCARDIOGRAPHY AS A METHOD OF DETERMINING CARDIAC ACTIVITY DURING THE PERFORMANCE OF WORK].
mesh_terms: D004562:Electrocardiography; D005080:Exercise Test; D006331:Heart Diseases; D006334:Heart Function Tests; D006801:Humans; D005082:Physical Exertion
keywords: ELECTROCARDIOGRAPHY; EXERCISE TEST; EXERTION; HEART DISEASES; HEART FUNCTION TESTS
vernacular_title: RADIOEL'EKTROKARDIOGRAFIIA KAK METOD ISSLEDOVANIIA DEIATEL'NOSTI SERDTSA VO VREMIA PROIZVODSTVENNO I RABOTY.