(Q78860878)
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The influence of high altitudes on the electrical activity of the heart. I. Electrocardiographic and vectorcardiographic observations in the newborn, infants, and children (English)
The influence of high altitudes on the electrical activity of the heart. I. Electrocardiographic and vectocardiographic observations in the newborn, infants, and children (English)
D. PENALOZA
R. GAMBOA
J. DYER
M. ECHEVARRIA