1. Division of Biostatistics, Epidemiology and Environmental Health; School of Public Health, University of Nevada, Reno; Reno Nevada USA
2. Gangarosa Department of Environmental Health; Rollins School of Public Health, Emory University; Atlanta Georgia USA
3. Institute for Medical Information Processing, Biometry and Epidemiology (IBE), Chair of Public Health and Health Services Research; LMU Munich; Munich Germany
4. Pettenkofer School of Public Health; Munich Germany
5. Children without Worms; The Task Force for Global Health; Atlanta Georgia USA