

@article {12779,
	title = {{Effects of improved water supply and sanitation on ascariasis, diarrhoea, dracunculiasis, hookworm infection, schistosomiasis, and trachoma}},
	journal = {Bulletin of the World Health Organization},
	volume = {69},
	number = {5},
	year = {1991},
	pages = {609{\textendash}621},
	author = {Esrey, J and Potash, JB and Roberts, L and Shiff, C}
}
