Article History
Received: 1 December 2020
Revised: 24 January 2021
Accepted: 1 February 2021
First Online: 8 April 2021
Declarations
:
: The design of this protocol follows the tenets of the Declaration of Helsinki, approved by the Ethics Committee of People’s Hospital of Rizhao.
: Written informed consents were obtained from all participants.
: The authors declare no competing interest.