1. Pneumothorax after parturition in a cow;Guard;Compend Cont Educ Pract Vet,1985
2. Pulmonary bullous emphysema with pneu-mothorax and subcutaneous emphysema-What's your diagnosis;Gilroy;J Am Vet Med Assoc,1999
3. Experimentally induced respiratory syncytial viral infection in calves;Mohanty;Am J Vet Res,1975