Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: author="CHOO, RE" or (type any "bookEditor issueEditor" and editor="CHOO, RE") Add to list Journal Article A1 Oral fluid as an alternative matrix to monitor opiate and cocaine use in substance-abuse treatment patients R DAMS, RE CHOO, Willy Lambert (UGent) , H JONES and MA HUESTIS (2007) DRUG AND ALCOHOL DEPENDENCE. 87(2-3). p.258-267 Add to list Journal Article A1 LC-atmospheric pressure chemical ionization-MS/MS analysis of multiple illicit drugs, methadone, and their metabolites in oral fluid following protein precipitation Riet Dams, CM Murphy, RE Choo, Willy Lambert (UGent) , Andreas De Leenheer (UGent) and MA Huestis (2003) ANALYTICAL CHEMISTRY. 75(4). p.798-804