title: Further studies on the cotton rat, and the action of its serum on Trypanosoma vivax.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002499:Centrifugation, Density Gradient; D007109:Immunity; D008259:Macroglobulins; D008623:Mercaptoethanol; D008892:Milk / Q000032:analysis; D051381:Rats; D014345:Trypanosoma
chemical_list: D008259:Macroglobulins; D008623:Mercaptoethanol