Fan Xue, Li Xin, Chang Hong, Yan Xiue, Huang Yonghui
Department of Gastroenterology, Peking University International Hospital & Peking University Third Hospital, Beijing, China.
VideoGIE. 2019 May 6;4(7):331-333. doi: 10.1016/j.vgie.2019.03.011. eCollection 2019 Jul.