OCs are currently the second most popular birth control method in U.S.
D000569:Americas; D003267:Contraception; D003268:Contraception Behavior; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D003710:Demography; D019049:Developed Countries; D003906:Developing Countries; D005193:Family Planning Services; D005298:Fertility; D009656:North America; D010342:Patient Acceptance of Health Care; D011153:Population; D011157:Population Dynamics; D012725:Sexual Behavior; D013997:Time Factors; D014481:United States
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral
Americas; Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Methods; Contraceptive Methods Chosen; Contraceptive Usage; Demographic Factors; Developed Countries; Developing Countries; Family Planning; Fertility; Method Acceptability; North America; Northern America; Oral Contraceptives; Population; Population Dynamics; Reproductive Behavior; Time Factors; United States