1. Department of Public Health and Environment; World Health Organization; Geneva Switzerland
2. Swiss Tropical and Public Health Institute; Basel Switzerland
3. University of Basel; Basel Switzerland
4. London School of Hygiene and Tropical Medicine; London UK
5. Gillings School of Global Public Health; University of North Carolina at Chapel Hill; Chapel Hill NC USA
6. Department of Environmental Health; Rollins School of Public Health; Emory University; Atlanta GA USA
7. School of Public Health; University of California; Berkeley CA USA
8. Centre for Research into Environment and Health; Aberystwyth University; Aberystwyth UK
9. Norwich Medical School; University of East Anglia; Norwich UK
10. Department of Environmental Health; Tshwane University of Technology; Pretoria South Africa
11. EAWAG; Swiss Federal Institute of Aquatic Science and Technology; Dübendorf Switzerland
12. Department of Health Statistics and Information Systems; World Health Organization; Geneva Switzerland
13. School of Social and Community Medicine; University of Bristol; Bristol UK
14. Centre for Reviews and Dissemination; University of York; York UK