title: [Research on the biology of reproduction at the Mexican Institute of Social Security. III. Critical hormonal periods and the regulation of fertility].
mesh_terms: D000328:Adult; D003267:Contraception; D005193:Family Planning Services; D005260:Female; D005298:Fertility; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006801:Humans; D008297:Male; D008598:Menstruation; D008800:Mexico; D008875:Middle Aged; D012098:Reproduction; D012106:Research
chemical_list: D012739:Gonadal Steroid Hormones
vernacular_title: La investigación de la biología de la reproducción en el Instituto Mexicano del Seguro Social. III. Periodos criticos hormonales y la regulacion de la fertilidad.