Funding for this research was provided by:
National Natural Science Foundation of China (81770561, 81970499)
Jiangsu medical leading talent and innovation team (CXTDA2017033)
Text and Data Mining valid from 2020-02-10
Received: 30 October 2019
Accepted: 17 December 2019
First Online: 10 February 2020
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Nanjing Medical University and written informed consent was obtained from all patients.
: We have obtained consents to publish this paper from all the participants.
: The authors declare that they have no competing interest.