Causes of clinic drop-out among Iranian pill users.
D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects; D003278:Contraceptives, Oral, Hormonal / Q000009:adverse effects; D005260:Female; D006801:Humans; D007492:Iran; D010352:Patient Dropouts; D011247:Pregnancy
D003276:Contraceptives, Oral; D003278:Contraceptives, Oral, Hormonal