Nel, A., Malherbe, M., van Niekerk, N., Beksinska, M., Greener, R., Smit, J., . . . Walsh, T. (2020). Performance of Male Condoms When Used With and Without a Silicone Placebo Vaginal Ring—A Randomized, Crossover Trial. J Acquir Immune Defic Syndr.

Nel, Annalene, Mariëtte Malherbe, Neliëtte van Niekerk, Mags Beksinska, Ross Greener, Jennifer Smit, Ron Frezieres, and Terri Walsh. "Performance of Male Condoms When Used With and Without a Silicone Placebo Vaginal Ring—A Randomized, Crossover Trial." J Acquir Immune Defic Syndr 2020.

Nel, Annalene, et al. "Performance of Male Condoms When Used With and Without a Silicone Placebo Vaginal Ring—A Randomized, Crossover Trial." J Acquir Immune Defic Syndr 2020.