Guo, Hao, Jiu-Hong Li, Xiao-Yi Yang, Xiao-Lu Wang, Jie Cao, Song Zheng, and Hong-Duo Chen. “Giant Ulcer on Abdominal Wall: A Quiz”. Acta Dermato-Venereologica 96, no. 3 (November 11, 2015): 427–431. Accessed February 18, 2025. https://medicaljournalssweden.se/actadv/article/view/6049.