Du, Qin
Fan, Lili
Zhou, Hongyu
Article History
Received: 4 October 2018
Accepted: 19 November 2018
First Online: 12 December 2018
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of West China Hospital, Sichuan University.
: Written informed consent for publication was obtained from the patient.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.