Progestin-only ECPs on the way to the U.S.
D000569:Americas; D002170:Canada; D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003281:Contraceptives, Postcoital; D019049:Developed Countries; D005193:Family Planning Services; D009656:North America; D016730:Program Development; D014481:United States
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003281:Contraceptives, Postcoital
Americas; Canada; Contraception; Contraception Research; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Agents, Postcoital; Contraceptive Agents, Progestin; Developed Countries; Family Planning; North America; Northern America; Progress Report; United States