Nepal 284 Knowledge 84 Kathmandu 57 prevention & control 50 Public Health 49 Environmental health 44 Health aspects 43 standards 43 Environmental aspects 39 Pollution 39 Water quality 38 Prevalence 37 Gezondheid 36 Quality Control 36 Water 36 Water Microbiology 36 Water Pollution 36 Water Supply 36 Water quality management 36 Children 33 methods 33 World Health Organization 29 Depression 25 Women 24 Epidemiology 23 Research 23 Public health 21 Health Research 19 HIV/AIDS 18 Journal of NHRC 18