title: [A new stage].
authors.forename: Carlos
authors.initials: C
authors.lastname: Fernández del Castillo
authors.forename: Jorge
authors.initials: J
authors.lastname: Delgado Urdapilleta
authors.forename: Ernesto
authors.initials: E
authors.lastname: Castelazo Morales
mesh_terms: D006176:Gynecology; D008800:Mexico; D009774:Obstetrics; D010506:Periodicals as Topic / Q000592:standards*; D011643:Publishing / Q000592:standards*