Received: 18 February 2020
Accepted: 5 August 2020
First Online: 17 August 2020
Ethics approval and consent to participate
: The study was approved by the Medical Ethics Committee of West China Second University Hospital, Sichuan University. Due to the nature of retrospective study, no written informed consent was obtained from patients. All follow-up information were approved by telephone review or out-patient review.
: Not applicable.
: The authors have no competing interests to declare.