title: Pathological and immunological studies on chicken embryos and day-old chicks experimentally infected with Mycoplasma gallisepticum.
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000382:microbiology*; D002645:Chickens / Q000382:microbiology*; D009175:Mycoplasma Infections / Q000276:immunology / Q000473:pathology / Q000662:veterinary*; D011201:Poultry Diseases / Q000276:immunology / Q000382:microbiology* / Q000473:pathology