Zou, Da
Sun, Zhuoran
Zhou, Siyu
Zhong, Woquan
Li, Weishi
Funding for this research was provided by:
Clinical Cohort Construction Program of Peking University Third Hospital (BYSYDL2019006)
Article History
Received: 25 August 2019
Accepted: 18 March 2020
First Online: 24 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All data collection and analysis conducted in this study were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. For this type of study, formal consent is not required.