Zhang M M, Yang H, Qian J M
Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
Zhonghua Nei Ke Za Zhi. 2021 Apr 1;60(4):384-387. doi: 10.3760/cma.j.cn112138-20200518-00489.