Oral contraceptives without prescription.
de Boer
A
A
Herings
R M
RM
D003276:Contraceptives, Oral / Q000009:adverse effects*; D004347:Drug Interactions; D005260:Female; D006801:Humans; D004366:Nonprescription Drugs / Q000009:adverse effects*
D003276:Contraceptives, Oral; D004366:Nonprescription Drugs