Article History
Received: 26 March 2020
Revised: 15 April 2020
Accepted: 4 July 2020
First Online: 10 July 2020
Compliance with ethical standards
:
: We do not have a financial or personal relationship with a third party. We have full control of all primary data and we agree to allow the journal to review their data if requested. On behalf of all authors, the corresponding author declares that there is no conflict of interest.
: The study was approved by the Department of Ethics, Beijing Chaoyang Hospital, Capital Medical University.