1. From the University of Minnesota College of Veterinary Medicine, Clinical Science Department (Stepaniuk), 1365 Gortner Ave., St. Paul, MN 55108; and, South Florida Veterinary Dentistry and Oral Surgery (Gingerich), 28400 Old 41 Road, STE 1, Bonita Springs, FL 34135. Dr. Stepaniuk's curent address is Columbia River Veterinary Specialists, 6607 NE 84th Street Suite 109, Vancouver, WA 98665