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Authors
Wang, Miao
Yang, Yi-feng
Guo, Bo-da
Hou, Hui-min
Meng, Ling-feng
Wang, Xuan
Amankwah, Millicent
Liu, Bao-qiong
Jin, Cheng-yue
Liu, Ming https://orcid.org/0000-0002-4770-4449
Wang, Jian-ye
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Funding
Funding for this research was provided by:
CAMS Innovation Fund for Medical Sciences (No. 2018-I2M-1-002)
Beijing Hospital Clinical Research 121 Project (BJ-2018-090)
Innovation Funds for Postgraduates of Peking Union Medical College (No.2019-1002-87)
Natural Science Foundation of Beijing Municipality (No. 7194315)
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Article History
Received: 20 March 2020
Accepted: 28 June 2020
First Online: 4 July 2020
Compliance with ethical standards
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: All the authors declare that they have no conflict of interest.
: Patients information was de-identified by HCUP, and the database is publicly available. Therefore, the use of database is exempt from IRB approval and the current study follows the NIS data access policies and publication guidelines.
: Anonymous data of human participants were involved in this study. Animals were not included in this study.
: Not applicable (NIS is a publicly available all-payer inpatient database in the U.S. and no informed consent was needed for this study).
