Choices: "the pill" combined oral contraceptive.
D000569:Americas; D003267:Contraception; D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D019049:Developed Countries; D005193:Family Planning Services; D009656:North America; D012106:Research; D014481:United States
D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined
Americas; Contraception; Contraceptive Methods; Developed Countries; Family Planning; North America; Northern America; Oral Contraceptives; Oral Contraceptives, Combined; Summary Report; United States