@article{articlee05aa5bd,
title   = {Solid-phase micro-extraction-gas chromatography-mass spectrometry and headspace-gas chromatography of tetrahydrocannabinol, amphetamine, methamphetamine, cocaine and ethanol in saliva samples},
author = {Yonamine, Maurício and Tawil, Nádia and Moreau, Regina Lúcia de Moraes and Silva, Ovandir Alves},
year = {2003},
doi = {10.1016/s1570-0232(03)00165-x},
journal   = {Journal of Chromatography B - Analytical Technologies in the Biomedical and Life Sciences}
}