Jufen. “Effects of a Microbial-Derived Natural Product, KB-120, on Men With Asthenospermia”. American Journal of Translational Medicine 2, no. 2 (June 1, 2018): 77–85. Accessed June 20, 2026. https://ajtm.journals.publicknowledgeproject.org/index.php/ajtm/article/view/681.