Somboontanakit C, Kongganun A, Tantiwong K. The Study of Serum Testosterone Level and Aging Male Symptoms in Thai Aging Male with Erectile Dysfunction. Insight Urol [internet]. 2007 Dec. 1 [cited 2026 Sep. 13];28(2):118-24. available from: https://he02.tci-thaijo.org/index.php/TJU/article/view/253217