Thevis M, Krug O, Piper T, Geyer H, Schänzer W
Center for Preventive Doping Research - Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, Cologne, Germany.
Int J Sports Med. 2016 Jan;37(1):82-4. doi: 10.1055/s-0035-1569350. Epub 2016 Jan 7.