title: The sponge at three years: research studies new, rehashes old questions.
mesh_terms: D000569:Americas; D002689:Chlamydia; D003267:Contraception; D003274:Contraceptive Devices, Female; D019049:Developed Countries; D003906:Developing Countries; D004194:Disease; D005193:Family Planning Services; D006069:Gonorrhea; D007239:Infections; D009656:North America; D012749:Sexually Transmitted Diseases; D014481:United States
keywords: Americas; Barrier Methods; Chlamydia; Contraception; Contraceptive Methods; Developed Countries; Developing Countries; Diseases; Family Planning; Gonorrhea; Infections; North America; Northern America; Reproductive Tract Infections; Sexually Transmitted Diseases--prevention and control; United States; Vaginal Barrier Methods; Vaginal Sponge