P Kiousi YS Angelis E Lyris M Koupparis AC Calokerinos J Atta-Politou CG Georgakopoulos, Two-step silylation procedure for the unified analysis of 190 doping control substances in human urine samples by GC–MS, Bioanalysis, (1), 1209--1224, 2009, Future Science Ltd, 1757-6180