title: [Present value of biological pregnancy tests in the primigravida].
authors.forename: E
authors.initials: E
authors.lastname: AGUIRRE PEQUENO
mesh_terms: D005260:Female; D020073:Gravidity; D006801:Humans; D011247:Pregnancy; D011258:Pregnancy Tests
keywords: PREGNANCY
vernacular_title: Valor actual de las reacciones gravidicas biologicas para el diagnóstico del embarazo I.