Received: 3 September 2018
Accepted: 17 June 2019
First Online: 20 June 2019
Ethics approval and consent to participate
: The repository and this case series have approval from the University of Cape Town Health Sciences Research Ethics Committee (R040/2016; HREC 318/2017). Requirement for informed consent was waived by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.