Text and Data Mining valid from 2020-03-30
Received: 28 November 2019
Accepted: 17 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the Research Ethics Committee of Institute of Basic Theory of Chinese Medicine, China Academy of Chinese Medical Sciences.
: Not applicable.
: The authors declare that there are no competing interests.