Roungsipragarn, R., and O. Somboonsub. “Hypertrophic Cesarean Section Scarring: Polyglycolic acid and Nylon Sutures in a Randomized Trial”. Thai Journal of Obstetrics and Gynaecology, vol. 13, no. 1, Sept. 2017, pp. 19-21, https://he02.tci-thaijo.org/index.php/tjog/article/view/99716.