1. Nuffield Department of Population Health; University of Oxford; Oxford UK
2. Nova Medical School; Faculdade de Ciências Médicas; Lisbon Portugal
3. Primary Care Research Unit; Instituto de Investigación Sanitaria Illes Balears; Palma de Mallorca Spain
4. Cochrane Response; Cochrane; London UK
5. Norwegian Institute of Public Health; Oslo Norway
6. Health Systems Research Unit; South African Medical Research Council; Cape Town South Africa
7. Department of Surgery; University of the Philippines; Manila Philippines
8. Department of Sexual and Reproductive Health; World Health Organization; Geneva Switzerland