"On-demand" oral contraception.
Raymond
Elizabeth
E
Halpern
Vera
V
Levy
Delphine
D
D000349:Africa; D003268:Contraception Behavior; D003276:Contraceptives, Oral; D005260:Female; D006801:Humans; D056687:Off-Label Use; D057240:Patient Preference; D012749:Sexually Transmitted Diseases / Q000517:prevention & control
D003276:Contraceptives, Oral