1. Department of Veterinary Clinical Sciences; College of Veterinary Medicine; The Ohio State University; 601 Vernon L. Tharp St. Columbus OH 43210 USA
2. Center for Biostatistics; Department of Biomedical Informatics; The Ohio State University; 1800 Cannon Dr. Columbus OH 43210 USA
3. ALK-Abelló; 1700 Royston Dr. Round Rock TX 78664 USA