Chen, Yu
Peng, Ping
Li, Chunying
Teng, Lirong
Liu, Xinyan http://orcid.org/0000-0001-8575-6883
Liu, Juntao
Cao, Dongyan
Zhu, Lan
Lang, Jinghe
Funding for this research was provided by:
Fundamental Research Funds of Central Public Welfare Scientific Institution of the Chinese Academy of Medical Science (2019PT320011)
Article History
Received: 10 December 2021
Accepted: 6 April 2022
First Online: 26 April 2022
Declarations
:
: The authors have no relevant financial or non-financial interests to disclose.
: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Institutional Review Board (IRB) of Peking Union Medical College Hospital (PUMCH) has determined that this study is exempt from full IRB review based on the following reason: the study only involves the collection or study of existing data, documents, records, pathological specimens, or diagnostic specimens, and these sources are publicly available or the information is recorded by the investigator in such a manner that subjects cannot be identified, directly or through identifiers linked to the subjects (approval number: S-K1748).