By the time the 31-year-old man walked into the New York Eye and Ear Infirmary at Mount Sinai, he'd been seeing red for weeks.
원문출처 : https://www.cnn.com/2020/02/07/health/erectile-dysfunction-viagra-cialis-levitra-vision-problems/index.html
원문출처 : https://www.cnn.com/2020/02/07/health/erectile-dysfunction-viagra-cialis-levitra-vision-problems/index.html