Hair testing for cocaine and metabolites by GC/MS: Criteria to quantitatively assess cocaine use

1. López-Guarnido, O.
2. Álvarez, I.
3. Gil, F.
4. Rodrigo, L.
5. Cataño, H.C.
6. Bermejo, A.M.
7. Tabernero, M.J.
8. Pla, A.
9. Hernández, A.F.