Greyling, Abraham Gerhardus Wilhelmus http://orcid.org/0000-0002-0217-3912
Pitcher, Richard Denys
Funding for this research was provided by:
none
Article History
First Online: 20 July 2018
Compliance with Ethical Standards
: The study was approved by the Health Research Ethics Committee of the Faculty of Medicine and Health Sciences of Stellenbosch University and TBH Management. Written informed consent was obtained from all participating residents, whose anonymity was assured through the use of unique study identifiers, known only to the principal investigator.
: The authors declare that they have no conflict of interest.