@book{12964,
	author = {Cousens, Simon N. and Kirkwood, Betty R. and World Health Organization. Diarrhoeal Disease Control Programme.},
	title = {Outcome measures in prospective studies of childhood diarrhoea and respiratory infections : choosing and using them.},
	publisher = {World Health Organization,},
	year = {1990.},
	address = {Geneva : }
}