Altitude, ethnic and sex differences in birth weight and length in Bolivia.
D000531:Altitude; D001724:Birth Weight; D001827:Body Height; D001838:Bolivia; D005060:Europe / Q000208:ethnology; D005260:Female; D005865:Gestational Age; D006801:Humans; D007199:Indians, South American; D007231:Infant, Newborn; D008297:Male; D012737:Sex Factors; D012959:Socioeconomic Factors