REFERENCES
- Creatsas G, Guererro E, Guilbert E, et al. A multi- national evaluation of the efficacy, safety and accept- ability of the ProtectaidÒ contraceptive sponge. Eur J Contracept Reprod Health Care 2001;6:172–82
- Aubeny E, Colau JC, Nandeuil A. Local spermicidal contraception: a comparative study of the acceptability and safety of a new benzalkonium chloride, the vaginal capsule, with a reference formulation, the pessary. Eur J Contracept Reprod Health Care 2000;5:61–7
- Raymond E, Dominik R. Contraceptive effectiveness of two spermicides: a randomized trial. Obstet Gynecol 1999;93:896–903
- Raymond E, Alvarado G, Ledesma L, et al. Accept- ability of two spermicides in five countries. Contracep- tion 1999;60:45–50
- Zavos PM, Mohammadi F, Correa JR, et al. Assessment of new formulations of nonoxynol-9 coprecipitated with polvinylopyrrolidone and iodine as possible vaginal contraceptives. Fertil Steril 1996;66:729–33
- Hatcher RA, Rinehart W, Blackburn R, et al. The Essentials of Contraceptive Technology. Baltimore: Johns Hopkins University School of Public Health, Popula- tion Information Program, 1997, 13–14
- Steiner MJ, Hertz-Picciotto, Schulz KF, et al. Measuring true contraceptive efficacy. A randomized approach – condom vs. spermicide vs. no method. Contraception 1998;58:375–8
- Piccino LJ, Mosher WJ. Trends in contraceptive use in the United States 1982–1995. Fam Plann Perspect 1998; 30:4–10
- Storm BL, Collins M, West SL, et al. Sexual activity, contraceptive use, and other risk factors for asympto- matic and symptomatic bacteriuria. Ann Intern Med 1987;107:816–23
- Fihn S, Boyko EJ, Chi-Ling Chen, et al. Use of spermicide-coated condoms and other risk factors for urinary tract infection caused by Staphylococcus saprophyticus. Arch Intern Med 1998;158:281–7
- Simpson JL, Philips OP. Spermicides, hormonal contra- ception and congenital malformations. Adv Contracept 1990;6:141–67
- Niruthisard S, Roddy RE, Chutivonge S. Use of nonoxynol-9 and reduction in rate of gonococcal and chlamydial infections. Lancet 1992;339:1371–5
- Roddy RE, Schulz KF, Cates W. Microbicides, meta- analysis, and the N-9 question. Where’s the research? Sex Trans Dis 1998;25:151–3
- Roddy RE, Zekeng L, Ryan KA, et al. Controlled trial of nonoxynol-9 film to reduce male to female trans- mission of sexually transmitted diseases. N Engl J Med 1998;339:504–10
- Roddy RE, Zekeng L, Ryan KA, et al. Effect of nonoxynol-9 gel on urogenital gonorrhea and chlamy- dial infection. A randomized controlled trial. J Am Med Assoc 2002;287:1117–22
- Roddy RE, Cordero M, Cordero C, Fortney JA. A dosing study of nonoxynol-9 and genital irritation. Int J STD AIDS 1993;4:165–70
- Zekong L, Feldblum PJ, Oliver RM, Kaptue L. Barrier contraceptive use and HIV infection among high-risk women in Cameroon. AIDS 1993;7:725–31
- Cook RL, Rosenberg MJ. Do spermicides containing nonoxynol-9 prevent sexually transmitted infections? A meta-analysis. Sex Trans Dis 1998;25:144–50
- Joint United Nations Programme on HIV/AIDS (UNAIDS) and World Health Organization (WHO). AIDS Epidemic Update: Dec 2001. Geneva: UNAIDS, WHO, Dec 2001
- Stephenson J. Widely used spermicides may increase, not decrease, risk of HIV transmission. J Am Med Assoc 2000; 284:949
- International Working Group on Vaginal Micro- bicides. Recommendations for the development of vaginal microbicides. AIDS 1996;10: UNAIDS 1–6
- Dual protection: avoiding pregnancy and HIV/AIDS. Population Report 2001; 29:20