title: [Statistical studies on perinatal research. Forms and instructions].
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D008487:Medical History Taking; D008499:Medical Records; D008800:Mexico; D008875:Middle Aged; D011247:Pregnancy; D013223:Statistics as Topic
vernacular_title: Estudios estadísticos en las investigaciones perinatales. Formularios e instructivos.