Funding for this research was provided by:
Zhejiang Traditional Chinese Medicine Administration (2016ZQ027)
Received: 31 January 2019
Accepted: 4 March 2020
First Online: 12 March 2020
Ethics approval and consent to participate
: The board of Ethic Committee of Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University had reviewed the study protocol and confirmed that formal ethic approval was not required because this study only involved prescription data from a database. Informed consent was also waived by the ethic committee (Reference number: KEYAN20190628–23). Permission was obtained to access the database and the data used was de-identified upon data collection.
: Not applicable.
: The authors declare that they have no competing interests.