Kanjanawart, S., Kongyingyoes, B., Gaysornsiri, D., Tangsucharit, P., Puapairoj, P., Vannaprasaht, S., Tiamkao, S., & Tassaneeyakul, W. (2013). Bioequivalence and Pharmacokinetic Study of Sildenafil in Healthy Thai Male Volunteers. Srinagarind Medical Journal, 23(1), 38–44. Retrieved from https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13051