- Determination of GHB and marijuana (THC, CBD) abuse in saliva by capillary electrophoresisMazina, Jekaterina; Saar-Reismaa, Piret; Å piljova, Anastassija; Kaljurand, Mihkel; Kulp, Maria; Vaher, MerikeITP2015/NoSSS2015 : final program and book of abstracts2015 / p. YS-4