title: A regimen for fertility control with a cyclic progestogen.
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000139:chemically induced; D003276:Contraceptives, Oral; D004717:Endometrium / Q000187:drug effects; D005260:Female; D006801:Humans; D008598:Menstruation; D009644:Norgestrel / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology*; D010507:Periodicity
chemical_list: D003276:Contraceptives, Oral; D009644:Norgestrel