title: [Principal findings in 1000 placentas of the Instituto Nacional de Perinatología, Desarrollo Integral de la Familia. Preliminary communication].
mesh_terms: D005260:Female; D005865:Gestational Age; D006801:Humans; D007238:Infarction / Q000473:pathology; D010920:Placenta / Q000033:anatomy & histology* / Q000098:blood supply; D011247:Pregnancy; D014427:Twins
vernacular_title: Hallazgos principales en 1000 placentas del INPer DIF. Comunicación preliminar.