Liu, Peng Ju
Yao, Aimin
Ma, Liangkun
Chen, Xiao Yan
Yu, Song Lin
Liu, Yanping https://orcid.org/0000-0002-1947-0315
Hou, Yi Xuan
Article History
Received: 18 March 2020
Accepted: 10 May 2020
First Online: 16 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.
: The study protocol was approved by the Ethics Committee of Peking Union Medical College Hospital of the Chinese Academy of Medical Science (Unique Protocol ID: hs-1646). This study was conducted in accordance with both the Declaration of Helsinki of 1975, as revised in 1983, and guidelines of the center’s institutional review board.
: All the participants were informed of the details of the study, and each participant provided written informed consent.