%0 Journal Article %T Analysis of (–)-11-nor-9-carboxy-Δ9-tetrahydrocannabinol and (–)-11-nor-9-carboxy-Δ8-tetrahydrocannabinol in hair from a school-age population %A Paulsen, Ryan B %A Stowe, G. Neil %A Schaffer, Michael I %A Krohn, Nickolaus %J Journal of Analytical Toxicology %V 49 %N 4 %P 224-230 %@ 0146-4760 %D 2025-02-28 %I Oxford University Press %~ DeepDyve