The economics of enzootic pneumonia.
D000383:Agriculture; D000818:Animals; D001947:Breeding; D004467:Economics; D005260:Female; D005823:Genetics; D007044:Hysterectomy; D008297:Male; D009175:Mycoplasma Infections / Q000517:prevention & control / Q000662:veterinary*; D011014:Pneumonia / Q000517:prevention & control / Q000662:veterinary*; D012008:Recurrence; D013552:Swine; D013553:Swine Diseases / Q000517:prevention & control