Letter: Post-pill amenorrhoea.
D000568:Amenorrhea / Q000139:chemically induced*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000139:chemically induced; D008599:Menstruation Disturbances / Q000139:chemically induced; D013997:Time Factors
D003276:Contraceptives, Oral