Health trends in sri lanka.
D003141:Communicable Diseases / Q000453:epidemiology; D006262:Health; D006304:Health Status; D006280:Health Workforce; D006801:Humans; D007922:Leptospirosis / Q000453:epidemiology; D008288:Malaria / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology; D013188:Sri Lanka