Cozart® RapiScan Oral Fluid Drug Testing System validation by GC-MS/MS analysisMarta Sánchez, Amparo Arroyo, Maria Barbal, Mariona Palahí and Agustí MoraAnn Toxicol Anal, 20 3 (2008) 131-136DOI: https://doi.org/10.1051/ata/2009012