

@article {7266,
	title = {Drinking water turbidity and gastrointestinal illness in the elderly of {Philadelphia}},
	journal = {Journal of epidemiology and community health},
	volume = {54},
	number = {1},
	year = {2000},
	pages = {45{\textendash}51},
	url = {http://jech.bmj.com/content/54/1/45.short},
	author = {Schwartz, Joel and Levin, Ronnie and Goldstein, Rebecca}
}
