McCaul Michael, de Waal Ben, Hodkinson Peter, Grimmer Karen
Centre for Evidence-Based Health Care, Stellenbosch University, South Africa.
Department of Emergency Medical Sciences, Cape Peninsula University of Technology, South Africa.
Afr J Emerg Med. 2016 Sep;6(3):113-115. doi: 10.1016/j.afjem.2016.08.004. Epub 2016 Aug 20.