Article History
Received: 24 November 2020
Revised: 8 January 2021
Accepted: 9 January 2021
First Online: 21 January 2021
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: Ethical approval was waived by the Institutional Review Board of Peking Union Medical College Hospital because this was an observational study based on the FAERS, which is a public anonymized database.