1. University of California, San Diego, School of Medicine, 9500 Gilman Drive, CNCB, Room 122, La Jolla, CA 92093-0634, USA.
2. Institute of Biochemistry, German Sport University, Cologne, Germany
3. Anti-Doping Laboratory, Doha, State of Qatar
4. Maison du Sport International, Lausanne, Switzerland
5. SomaLogic, Ltd, Boulder, CO, USA