Lara R Fairall1,2
, Max O Bachmann3
, Merrick F Zwarenstein4
, Carl J Lombard5
, Kerry Uebel1
, Cloete van Vuuren6
, Dewald Steyn6
, Andrew Boulle7
and Eric D Bateman1,2 
1Knowledge Translation Unit, University of Cape Town Lung Institute, PO Box 34560, Groote Schuur 7937, South Africa
2Department of Medicine, University of Cape Town, PO Box 34560, Groote Schuur 7937, South Africa
3School of Medicine, Health Policy & Practice, University of East Anglia, Norwich NR47TJ, UK
4Li Ka Shing Knowledge Institute, St Michaels Hospital, Department of Health, Policy, Management and Evaluation, University of Toronto, Toronto, Canada
5Medical Research Council, Francie van Zijl Drive, Parowvallei, PO Box 19070, Tygerberg 7505, South Africa
6Department of Medicine, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
7School of Public Health and Family Medicine, University of Cape Town, Observatory 7925, South Africa