title: Studies on avian pleuropneumonia-like organisms. I. Incidence of chronic respiratory disease of poultry in India.
mesh_terms: D000818:Animals; D007194:India; D009174:Mycoplasma / Q000302:isolation & purification*; D009175:Mycoplasma Infections / Q000662:veterinary*; D011201:Poultry Diseases / Q000276:immunology*; D012141:Respiratory Tract Infections / Q000662:veterinary*