The influence of high altitudes on the electrical activity of the heart. I. Electrocardiographic and vectorcardiographic observations in the newborn, infants, and children.
D000531:Altitude; D002648:Child; D004562:Electrocardiography; D006321:Heart / Q000502:physiology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D014672:Vectorcardiography
ALTITUDE; ELECTROCARDIOGRAPHY/in infancy and childhood; HEART/physiology; VECTORCARDIOGRAPHY/in infancy and childhood