Xue N, Lei X F, Xu J J, Wei X X
Department of Gastroenterology, Qilu Children's Hospital of Shandong University, Jinan 250022, China.
Department of Special Examination, Jinan Shizhong People's Hospital, Jinan 250001, China Corresponding authour: Wei Xuxia, Email:
Zhonghua Er Ke Za Zhi. 2021 Feb 2;59(2):145-149. doi: 10.3760/cma.j.cn112140-20200618-00633.