Received: 21 September 2020
Accepted: 17 March 2021
First Online: 1 April 2021
: Ethics approval for data collection was obtained from the University of Cape Town human research ethics committee, HREC no: 692/2018.
: Not applicable.
: WS has received sponsorships from Pfizer and Abbvie for conference attendance.CS has received conference attendance sponsorships and speaker fees from Abbvie, Pfizer and Roche.CT and NB declare no competing interests.