[Electrocardiographical changes in athletes; study of marathon runners and skiers].
ROSENZWEIG
S
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D056352:Athletes; D004562:Electrocardiography; D015444:Exercise; D006801:Humans; D012420:Running
ELECTROCARDIOGRAPHY; EXERCISE/effects
Modificările electrocardiogramei la sportivi; observatii asupra alergătorilor de maraton si schiori.