

@article {1986,
	title = {Grastrointestinal illness associated with <i>Balantidium coli</i> infection in rural communities in Ecuador},
	journal = {Parasitolog{\'\i}a al Dia},
	volume = {18},
	year = {1994},
	pages = {51-54},
	author = {Cooper, P. J. and Guderian, R. H.}
}
