1. K.L. Maddy Equine Analytical Pharmacology Laboratory, School of Veterinary Medicine University of California Davis California USA
2. Department of Molecular Biosciences, School of Veterinary Medicine University of California Davis California USA
3. Department of Population Health and Reproduction, School of Veterinary Medicine University of California Davis California USA
4. Department of Surgical and Radiological Sciences, School of Veterinary Medicine University of California Davis California USA
5. School of Veterinary Medicine University of California Davis California USA