TY  - RPRT
TI  - Comparative study of liquid-liquid extraction and solid-phase extraction methods for the separation of sufentanil from plasma before gas chromatographic-mass spectrometric analysis.
AU  - C Dufresne
AU  - P Favetta
AU  - C Paradis
AU  - R Boulieu
PY  - 2001
UR  - https://pubmed.ncbi.nlm.nih.gov/11238322/
ID  - 11238322
ER  -