1. Norwegian Knowledge Centre for the Health Services; Prevention, Health promotion, and Organisation Unit; Oslo Norway
2. Norwegian Knowledge Centre for the Health Services; Global Health Unit; Oslo Norway
3. James Lind Initiative; Oxford UK
4. Makerere University College of Health Sciences, New Mulago Hospital Complex; Kampala Uganda
5. Health Systems Research Unit, South African Medical Research Council; Cape Town South Africa
6. Norwegian Knowledge Centre for the Health Services, Communication Unit; BOKS 7004 St.Olavsplass 0130 Oslo Norway