Funding for this research was provided by:
National Natural Science Foundation of China (81373621, 81774166)
Clinical Science and technology innovation project of Shanghai Shenkang Hospital Development Center (SHDC12016114)
Excellent Academic Leaders of Health and Family Planning System in Shanghai (2017BR044)
Sponsored by Shanghai Sailing Program (17YF1419700)
Longhua Medical Scholar (LYTD-39)
Text and Data Mining valid from 2019-08-07
Received: 26 July 2018
Accepted: 18 July 2019
First Online: 7 August 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Longhua hospital, Shanghai University of Traditional Chinese Medicine.
: Not applicable.
: The authors declare that they have no competing interests.