Birth control over 30.
Asnes
M
M
D000569:Americas; D003267:Contraception; D003268:Contraception Behavior; D003276:Contraceptives, Oral; D003625:Data Collection; D019049:Developed Countries; D005193:Family Planning Services; D007267:Injections; D007434:Intrauterine Devices; D009656:North America; D012106:Research; D012494:Sampling Studies; D013245:Sterilization, Reproductive; D014481:United States
D003276:Contraceptives, Oral
Americas; Barrier Methods; Contraception; Contraceptive Effectiveness; Contraceptive Implants--side effects; Contraceptive Methods--beneficial effects; Contraceptive Methods--side effects; Contraceptive Usage--women; Developed Countries; Family Planning; Injectables--side effects; Iud--side effects; North America; Northern America; Oral Contraceptives, Low-dose--beneficial effects; Oral Contraceptives--beneficial effects; Research Methodology; Sampling Studies; Sterilization, Sexual; Studies; Surveys; United States