He, Huaiwu
,
Ma, Xudong
Su, Longxiang
Wang, Lu
Guo, Yanhong
Shan, Guangliang
He, Hui Jing
Zhou, Xiang http://orcid.org/0000-0001-8523-8082
Liu, Dawei
Long, Yun
Zhao, Yupei
Zhang, Shuyang
Article History
Received: 3 October 2019
Accepted: 14 February 2020
First Online: 4 March 2020
Ethics approval and consent to participate
: The study protocol was approved by the institutional review board of Peking Union Medical College Hospital; the approval included a waiver for the informed consent of the patients and physicians.
: N/A
: The authors declare that they have no competing interests.