Ramaganont, Kanokporn, Suwadee Chuanchaiyakul, and Montree Udompataikul. 2011. “Effect of Platelet-rich Plasma Intradermal Injection on the Reduction of Facial Cutaneous Wrinkles”. Vajira Medical Journal : Journal of Urban Medicine 55 (1):9-18. https://he02.tci-thaijo.org/index.php/VMED/article/view/477.