No abstract available
MeSH terms
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Adolescent
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Altitude*
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Blood Pressure*
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Cardiomegaly*
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Child
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Ductus Arteriosus*
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Electrocardiography*
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Heart*
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Humans
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Hypertension*
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Hypertension, Pulmonary*
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Hypoxia*
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Infant
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Infant, Newborn
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Myocardial Infarction*
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Peru
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Pulmonary Circulation*
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Pulmonary Edema*
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Vectorcardiography*