title: Precipitating antibodies in extracts from the mucosa and tunica muscularis of the alimentary tract of sheep infected with Oesophagostomum columbianum.
mesh_terms: D000818:Animals; D000906:Antibodies; D004064:Digestive System; D005779:Immunodiffusion; D066298:In Vitro Techniques; D014259:Trichuroidea / Q000276:immunology*
chemical_list: D000906:Antibodies