1. Center for Preventive Doping Research; German Sport University; Cologne Germany
2. Institute of Pharmacy; Freie Universität Berlin; Germany
3. School of Preclinical Medicine; Beijing University of Chinese Medicine; Bejing P. R. China
4. Central Institute of the Bundeswehr Medical Service; Garching-Hochbrück Germany
5. Bayer Pharma AG; Berlin Germany
6. Clinic for Cattle, Endocrinology Laboratory; University of Veterinary Medicine Hannover; Hannover Germany
7. Institute of Organic Chemistry; University of Cologne; Germany
8. State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China