Funding for this research was provided by:
Youth Science and Technology Creative Research Groups of Sichuan Province (2015TD0013)
Article History
Received: 20 October 2018
Accepted: 6 June 2019
First Online: 19 June 2019
Ethics approval and consent to participate
: This study was approved by Institutional Review Boards of the Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital, and informed consent was obtained before study. Written informed consent for the study was obtained from all patients. If the patients were less than 18 years old, the legal guardians of participants under 18 provided written consent.
: Not applicable
: The authors declare that they have no competing interests.