Assessment of local tobacco consumption by liquid chromatography-tandem mass spectrometry sewage analysis of nicotine and its metabolites, cotinine and trans-3′-hydroxycotinine, after enzymatic deconjugation

1. Rodríguez-Álvarez, T.
2. Rodil, R.
3. Rico, M.
4. Cela, R.
5. Quintana, J.B.