Funding for this research was provided by:
National Natural Science Foundation of China (81600266)
Science and Technology Commission of Shanghai Municipality (16ZR 1422300)
Text and Data Mining valid from 2019-09-11
Received: 20 December 2018
Accepted: 20 August 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: The study was approved by Ethics Committee of Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine (approval number: XHEC -D-2017-056) and performed in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.