1. Clinical Veterinary Medicine Division Equine Research InstituteJapan Racing Association Shimotsuke Japan
2. Drug Analysis DepartmentLaboratory of Racing Chemistry Utsunomiya Japan
3. Equine Department Main officeJapan Racing Association Minato‐ku Japan
4. Comparative Biomedical Sciences The Royal Veterinary College London UK
5. IntheresEcole Nationale Vétérinaire de Toulouse Toulouse France