title: Changing trends in conception control.
authors.forename: H
authors.initials: H
authors.lastname: El-tonsi
authors.forename: H
authors.initials: H
authors.lastname: Gable
authors.forename: E
authors.initials: E
authors.lastname: Arias
authors.forename: H Z
authors.initials: HZ
authors.lastname: Behr
mesh_terms: D000569:Americas; D001208:Asia; D002681:China; D003267:Contraception; D003274:Contraceptive Devices, Female; D019049:Developed Countries; D003906:Developing Countries; D005193:Family Planning Services; D005202:Asia, Eastern; D007434:Intrauterine Devices; D007723:Korea; D009656:North America; D013245:Sterilization, Reproductive; D013246:Sterilization, Tubal; D014586:USSR; D014481:United States; D014659:Vasectomy
keywords: Americas; Asia; Barrier Methods; Cervical Cap; China; Contraception--changes; Contraceptive Methods; Developed Countries; Developing Countries; Eastern Asia; Family Planning; Female Sterilization; Iud; Korea; Male Sterilization; North America; Northern America; Sterilization, Sexual; Tubal Ligation; Tubal Occlusion; United States; Ussr; Vaginal Barrier Methods; Vaginal Diaphragm; Vasectomy