<a href="https://www.physiology.org/professional-development/meetings-events/past-conferences/international-conf-endothelin/press-releases/2021/10/04/erectile-dysfunction-could-be-prevented-by-blocking-endothelin-1?SSO=Y">https://www.physiology.org/professional-development/meetings-events/past-conferences/international-conf-endothelin/press-releases/2021/10/04/erectile-dysfunction-could-be-prevented-by-blocking-endothelin-1?SSO=Y</a>