489 citations
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June 2005 in “The FASEB Journal” 142 citations
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June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Hair follicle stem cells can generate all hair cell types, skin, and sebaceous glands.
4 citations
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September 1999 in “Journal of Clinical Forensic Medicine” Caffeine in hair might help identify people, but it's not always reliable.