Analysis of 11-nor-9-carboxy-'Δ POT. 9'-tetrahydrocannabinol in urine samples by hollow fiber-liquid phase microextraction and gas chromatography-mass spectrometry in consideration of measurement uncertainty - Eller, Sarah Carobini Werner de Souza; Flaiban, Luma Gonçalves; Paranhos, Beatriz Aparecida Passos Bismara; Costa, José Luiz da; Lourenço, Felipe Rebello; Yonamine, Maurício (Forensic Toxicology, 2014)