Received: 9 June 2021
Accepted: 8 April 2022
First Online: 9 May 2022
: After reading the information about the study, participants indicated their informed consent to take part by ticking a box on the information page at the beginning of the survey. Ethical approval was received from Imperial College Research Ethics Committee (ICREC reference: 17IC3937).
: Not applicable.
: The authors declare that they have no competing interests.