. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: J Sex Med. 2018 Sep 12;15(10):1446–1455. doi: 10.1016/j.jsxm.2018.08.007
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).