%0 Journal Article %B Lancet %D 1978 %G eng %P 1119-1122 %T Escherichia coli strains that cause diarrhoea but do not produce heat-labile or heat-stable enterotoxins and are non-invasive %U http://www.sciencedirect.com/science/article/pii/S0140673678902994 %V 1