title: The interaction of infections of Haemonchus contortus and Nematodirus battus in lambs. I. The effect of massive infections of Haemonchus on subsequent infections of Nematodirus.
mesh_terms: D000018:Abomasum; D000818:Animals; D004792:Enzyme Precursors / Q000097:blood; D005750:Gastric Juice / Q000032:analysis; D006400:Hematocrit; D006863:Hydrogen-Ion Concentration; D007421:Intestine, Small; D009348:Nematoda / Q000254:growth & development; D009349:Nematode Infections / Q000150:complications / Q000662:veterinary*; D009851:Omasum; D010434:Pepsin A / Q000097:blood; D012756:Sheep; D012757:Sheep Diseases; D012964:Sodium / Q000032:analysis; D014252:Trichostrongyloidiasis / Q000097:blood / Q000150:complications / Q000662:veterinary*
chemical_list: D004792:Enzyme Precursors; D012964:Sodium; D010434:Pepsin A