Received: 11 November 2020
Accepted: 25 March 2021
First Online: 6 April 2021
: The Ethics Committee of the Affiliated Hospital of North Sichuan Medical College approved this prospective, double-blinded, randomized trial [2019ER(R)075–01], which registered at the Chinese Clinical Trials Registry [ChiCTR1900024731]. All methods were performed in accordance with the relevant guidelines and regulations, and all participants signed written informed consent.
: Not applicable.
: All authors declare that they have no competing interests.