Preventing schistosomiasis: a critical assessment of present policy.
D003365:Costs and Cost Analysis; D006266:Health Education; D006285:Health Planning; D006801:Humans; D012499:Sanitation; D012552:Schistosomiasis / Q000517:prevention & control*; D012959:Socioeconomic Factors; D014881:Water Supply; D014944:World Health Organization