title: [Macroscopic and histologic study of the placenta at mountain altitudes].
mesh_terms: D000328:Adult; D000531:Altitude; D001724:Birth Weight; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D010920:Placenta / Q000033:anatomy & histology / Q000166:cytology*; D011247:Pregnancy