title: Studies on Dictyocaulus filaria. I. Modifications of laboratory procedures.
mesh_terms: D000818:Animals; D001826:Body Fluids / Q000382:microbiology; D004022:Dictyocaulus Infections; D005243:Feces; D007814:Larva; D008722:Methods; D011309:Preservation, Biological; D012756:Sheep; D012757:Sheep Diseases; D014251:Trichostrongyloidea