The switch is on from contraceptive foam to film.
D000569:Americas; D003267:Contraception; D003270:Contraceptive Agents; D019049:Developed Countries; D005193:Family Planning Services; D006285:Health Planning; D017137:Nonoxynol; D009656:North America; D013089:Spermatocidal Agents; D014481:United States
D003270:Contraceptive Agents; D013089:Spermatocidal Agents; D017137:Nonoxynol
Americas; Barrier Methods; Contraception; Contraceptive Agents; Contraceptive Methods; Developed Countries; Family Planning; Family Planning Programs; Nonoxynol-9; North America; Northern America; Spermicidal Contraceptive Agents; United States; Vaginal Barrier Methods