@article {l,
	title = {Escherichia coli strains that cause diarrhoea but do not produce heat-labile or heat-stable enterotoxins and are non-invasive},
	journal = {Lancet},
	volume = {1},
	number = {8074},
	year = {1978},
	pages = {1119-1122},
	url = {http://www.sciencedirect.com/science/article/pii/S0140673678902994},
	author = {Levine, M. M. and others}
}
