Nouis , O. ., D. . Sadouki, K. . Sohbi, Y. . Rehamnia, and Y. . Merad. “Development of a Simultaneous Screening Method for Pregabalin, Tramadol, O-Desmethyl-Tramadol, Trihexyphenidyl, Oxazepam, Midazolam, Clonazepam, Zolpidem, and Buprenorphine in Urine Using GC-MS”. Journal of Current Medical Research and Opinion, vol. 7, no. 01, Jan. 2024, pp. 2002-9, doi:10.52845/CMRO/2024/7-1-3.