survey of angiostrongylus cantonensis in rats and giant african land snails in phitsanulok province, thailand. | to survey the angiostrongylus cantonensis (a. cantonensis) or the rat lungworm in a rat, definitive host, and in a giant african land snail (achatina fulica), the intermediate host, in phitsanulok, thailand. | 2011 | 21914534 |