1. Drug Analysis Department Laboratory of Racing Chemistry Utsunomiya Tochigi Japan
2. Department of Pharmaceutical Sciences Tohoku University Hospital Sendai Miyagi Japan
3. Genetic Analysis Department Laboratory of Racing Chemistry Utsunomiya Tochigi Japan
4. Equine Research Institute, Research Planning & Coordination Division JRA Shimotsuke Tochigi Japan
5. Race Horse Hospital, Miho Training Center JRA Inashiki‐gun Ibaraki Japan
6. Veterinarian Section, Equine Department JRA Minato‐ku Tokyo Japan
7. Race Horse Hospital, Ritto Training Center JRA Ritto Shiga Japan