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 
1
Knowledge Translation Unit, University of Cape Town Lung Institute, PO Box 34560, Groote Schuur 7937, South Africa
2
Department of Medicine, University of Cape Town, PO Box 34560, Groote Schuur 7937, South Africa
3
School of Medicine, Health Policy & Practice, University of East Anglia, Norwich NR47TJ, UK
4
Li Ka Shing Knowledge Institute, St Michaels Hospital, Department of Health, Policy, Management and Evaluation, University of Toronto, Toronto, Canada
5
Medical Research Council, Francie van Zijl Drive, Parowvallei, PO Box 19070, Tygerberg 7505, South Africa
6
Department of Medicine, University of the Free State, P.O. Box 339, Bloemfontein 9300, South Africa
7
School of Public Health and Family Medicine, University of Cape Town, Observatory 7925, South Africa