Wu, Yan-Yan http://orcid.org/0000-0002-3638-4224
Jia, Ming-Nan
Cai, Hao
Qiu, Yu
Zhou, Dao-Bin
Li, Jian http://orcid.org/0000-0002-4549-0694
Cao, Xin-Xin http://orcid.org/0000-0001-7884-3073
Article History
Received: 20 October 2019
Accepted: 10 June 2020
First Online: 23 June 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was performed in accordance with the ethical standards of the Institutional Ethics Committee of Peking Union Medical College Hospital at the Chinese Academy of Medical Sciences & Peking Union Medical College and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Written or verbal informed consent was obtained from all individual participants included in the study.