Detection of marijuana metabolite 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in human urine by bonded-phase adsorption and thin-layer chromatography.

@article{Kogan1984DetectionOM,
  title={Detection of marijuana metabolite 11-nor-delta 9-tetrahydrocannabinol-9-carboxylic acid in human urine by bonded-phase adsorption and thin-layer chromatography.},
  author={Michael J. Kogan and Elliot Newman and N. J. Willson},
  journal={Journal of chromatography},
  year={1984},
  volume={306},
  pages={441-3}
}

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