Received: 2 April 2021
Accepted: 22 March 2022
First Online: 2 April 2022
: This study was approved by the National Healthcare Group Ethics Board (2018/00960). All methods were performed in accordance with the relevant guidelines and regulations. The researchers had no position of authority over the participants and all participation was voluntary. Participants signed written consent forms indicating their willingness to participate after explanation of the study objectives.
: Not applicable.
: The authors declare that they have no competing interests.