[Effect of increased physical load on the electrical activity of the heart in submarine crew members during expeditions].
D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans; D008887:Military Medicine; D010806:Physical Education and Training; D005082:Physical Exertion; D013366:Submarine Medicine; D014586:USSR
Vliianie povyshennoĭ fizicheskoĭ nagruzki na élektricheskuiu aktivnost' serdtsa podvodnika v pokhode.