1. School of Public Health; University of the Western Cape; Cape Town South Africa
2. Cochrane South Africa; South African Medical Research Council; Cape Town South Africa
3. Cochrane Austria, Department for Evidence-based Medicine and Evaluation; Danube University Krems; Krems Austria
4. Department for Quality Improvement, Surrey and Borders Partnership Trust; National Health Service; Leatherhead UK
5. Pettenkofer School of Public Health, Institute for Medical Informatics, Biometry and Epidemiology; Ludwig-Maximilians-University Munich; Munich Germany
6. School of Nursing and Midwifery; National University of Ireland, Galway; Galway Ireland
7. Pettenkofer School of Public Health, Institute for Medical Information Processing, Biometry and Epidemiology; Ludwig-Maximilians-University Munich; Munich Germany
8. Galway Ireland