title: [Births  aborted among the users of the voluntary family planning program of the Instituto Mexicano del Seguro Social].
mesh_terms: D000022:Abortion, Spontaneous; D000293:Adolescent; D000328:Adult; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008433:Mathematics; D008800:Mexico; D010298:Parity; D011247:Pregnancy
vernacular_title: Nacimientos no acontecidos en usuarias del programa de planeación familiar voluntaria del Instituto Mexicano del Seguro Social