Text and Data Mining valid from 2019-12-01
Received: 30 June 2019
Accepted: 11 December 2019
First Online: 27 December 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of our hospital (the Medical Ethics Committee of Xi’an Gaoxin Hospital Recommendation) and all patients signed informed consents.
: Not Applicable.
: The authors declare that they have no competing interests.