1. Rantanen, N. W.: Abdominal ultrasound of the horse. In Proceedings of the 29th Annual Meeting of the American Institute of Ultrasound in Medicine, 1984.
2. Cholelithiasis in four horses;Traub;J. Am. Vet. Med. Assoc.,1982
3. Surgical removal of choleliths in the horse;Traub;J. Am. Vet. Med. Assoc.,1983
4. Intraabdominal neoplasia as a cause of chronic weight loss;Traub;Compend. Contin. Ed.,1983