[Frontal and horizontal projections of the QRS and T vectors and their relations to the stroke volume and heart frequency during rest and after defined work stress in man].
D004562:Electrocardiography; D006321:Heart; D006801:Humans; D008297:Male; D005082:Physical Exertion; D012146:Rest; D013318:Stroke Volume
ELECTROCARDIOGRAPHY; EXERTION