van Vollenstee, Fiona A. http://orcid.org/0000-0003-0862-9981
van der Merwe, Maria T.
Article History
Received: 7 July 2020
Revised: 29 January 2021
Accepted: 2 February 2021
First Online: 17 March 2021
Declarations
:
: Data collection was performed with written consent of patients, in accordance with Helsinki Declaration of 1961 with consideration of later amendments and comparable standards, and with ethical approval from Netcare Limited ethics committee and Health Sciences Research Ethics Committee of the University of Pretoria (protocol number: 205/2018). Informed consent was obtained from individual participants included in the study.
: The authors declare that they have no conflict of interest.