Article History
Received: 3 December 2019
Revised: 26 May 2020
Accepted: 10 June 2020
First Online: 11 August 2020
Conflict of interest
: The authors declare that they have no conflict of interest.
: The procedures in the present study were approved by the Medical Ethics Committee of Xiangya Hospital, Central South University (Changsha, Hunan, China) and performed in strict accordance with the relevant regulations.