Text and Data Mining valid from 2019-11-05
Received: 23 April 2019
Accepted: 29 October 2019
First Online: 5 November 2019
Ethics approval and consent to participate
: This research was approved by the ethical committee of West China Hospital of Sichuan University.
: Written informed consents were signed by all the patients.
: The authors declare that they have no competing interests.