Catheterization of the oesophagus in rats for collection of fourth stage larvae of Nippostrongylus brasiliensis.
D000818:Animals; D002404:Catheterization; D004947:Esophagus; D006725:Hookworm Infections; D007814:Larva; D008297:Male; D008722:Methods; D010270:Parasite Egg Count; D051381:Rats; D013320:Strongyloidea / Q000302:isolation & purification*