Funding for this research was provided by:
research funds of Wannan Medical College (WK2017ZF04)
Collegiate Major Natural Science Research Projects (KJ2018ZD027)
the teaching quality and teaching reform project of Wannan Medical College (Grant No. 2018jyxm58)
Text and Data Mining valid from 2020-01-03
Received: 22 December 2018
Accepted: 19 December 2019
First Online: 3 January 2020
Ethics approval and consent to participate
: The study was approved by the Medical ethics committee of Yi-Ji Shan Hospital, Wannan Medical College (No. 20160007), and written informed consent obtained from all the participants.
: Participants were assured in the consent form they signed the publication of the data will not indicate their names or any identification information.
: The authors declare that they have no competing interests. Gao Chen, Kang le Zhuang and He Wang Lan digital ST CO.LTD. declare that they have no competing interests.