Encare oval and Emko foam efficacy corrective ads.
D000329:Advertising; D003267:Contraception; D004467:Economics; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D008389:Marketing of Health Services; D013089:Spermatocidal Agents; D014622:Vaginal Creams, Foams, and Jellies
D013089:Spermatocidal Agents; D014622:Vaginal Creams, Foams, and Jellies
Contraception; Contraceptive Effectiveness; Contraceptive Methods; Economic Factors; Family Planning; Marketing; Promotion; Use-effectiveness; Vaginal Foam; Vaginal Spermicides