Received: 17 May 2019
Accepted: 23 March 2020
First Online: 30 March 2020
Ethics approval and consent to participate
: This trial was approved by official approval from the Institutional Review Board (IRB) of the Second Xiangya Hospital, Central South University (Changsha, Hunan Province, China) (NO. 2015S038). The participant consent was written.
: Not applicable.
: The authors declare that they have no competing interests.