
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) finds high fentanyl levels do not predict toxicity in tolerant users.
Editorial Director
Laura Bush
LCGC North America
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John Chasse
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Jerome Workman
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Cindy Delonas
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Will Wetzel
LCGC Europe, LCGC Asia Pacific, The Column
Editor-in-Chief
Alasdair Matheson
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Lily Atkins
Managing Editor
Kate Jones
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Lewis Botcherby






