title: Natural incidence and persistence of complement-fixing antibody to two equine mycoplasmas.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis*; D003168:Complement Fixation Tests; D006736:Horses / Q000276:immunology*; D009174:Mycoplasma / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial