Hair test results can be misleading due to external contamination, so they shouldn't be used alone to assess long-term drug use.
September 2001 in “PubMed” The new X-ray technique allows for precise and non-destructive measurement of elements in hair, creating the first database of its kind for a specific ethnic group.
December 2018 in “Neuroradiology” MRI helps distinguish between pituitary adenomas and craniopharyngiomas, guides treatment for pediatric CNS tumors, and assesses rhinocerebral mucormycosis with a high mortality rate in transplanted patients.
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January 2017 in “Springer eBooks” The document explains how hair follicles develop, their structure, and how they grow.
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January 2008 in “Annales de Toxicologie Analytique” Hair test results can be misleading due to contamination, so they shouldn't be used alone to determine drug use.