College of Sciences Administration - 1984 Bristol, D. G., Baum, K., & Mezza, L. (1984). Adenocarcinoma of the jejunum in two cows. Journal of the American Veterinary Medical Association, 185, 551–553. Bristol, D. G., Smith, J., & Silberman, M. S. (1984). Acepromazine and etorphine for prolonged anesthesia of a zebra. Journal of the American Veterinary Medical Association, 185, 1439–1440.