Eamudomkarn, Nuntasiri, Kovit Khampitak, Jen Xothornwit, Kutcharin Phunikhom, Nantaya Kunatippapong, Tueanjit Khampitak, and Phanwadee Chatvised. 2014. “Prevalence and Risk Factors of Erectile Dysfunction in Patient Visiting Andropause Clinic, Srinagarind Hospital, Thailand”. Srinagarind Medical Journal 29 (4):82. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/23650.