Dulayaprapa, S., W. Tuvayanon, and T. Akaraviputh. “Si-Wa Hand Port for Hand-Assisted Laparoscopic Surgery: An Innovative Device”. The Thai Journal of Surgery, vol. 32, no. 4, Dec. 2011, https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/227298.