1. National
Reference Laboratory for Veterinary Drug Residues, Department of Veterinary
Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
2. Institute
of Food Science, Department of Veterinary Sciences, Ludwig-Maximilians-University Munich, Oberschleißheim 85764, Germany
3. National
Feed Drug Reference Laboratories, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
4. Beijing WDWK Biotechnological
Company, Ltd., Beijing 100095, China