High variation in purity of consumer-level illicit fentanyl samples in Los Angeles, September 2023-April 2025.

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Title: High variation in purity of consumer-level illicit fentanyl samples in Los Angeles, September 2023-April 2025.
Authors: Shover CL; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States. Electronic address: clshover@mednet.ucla.edu., Koncsol AJ; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Godvin ME; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Goodman-Meza D; Kirby Institute, UNSW Sydney, Australia., Pardo B; United Nations Office on Drugs and Crime, Vienna, Austria., Poimboeuf M; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Molina CA; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Romero R; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Feng J; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States., Friedman JR; Department of Psychiatry, University of California, San Diego, United States.
Source: The International journal on drug policy [Int J Drug Policy] 2025 Nov; Vol. 145, pp. 104977. Date of Electronic Publication: 2025 Aug 30.
Publication Type: Journal Article
Journal Info: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 9014759 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-4758 (Electronic) Linking ISSN: 09553959 NLM ISO Abbreviation: Int J Drug Policy Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: High variation in purity of consumer-level illicit fentanyl samples in Los Angeles, September 2023-April 2025.
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  Data: <searchLink fieldCode="AU" term="%22Shover+CL%22">Shover CL</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States. Electronic address: clshover@mednet.ucla.edu.<br /><searchLink fieldCode="AU" term="%22Koncsol+AJ%22">Koncsol AJ</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Godvin+ME%22">Godvin ME</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Goodman-Meza+D%22">Goodman-Meza D</searchLink>; Kirby Institute, UNSW Sydney, Australia.<br /><searchLink fieldCode="AU" term="%22Pardo+B%22">Pardo B</searchLink>; United Nations Office on Drugs and Crime, Vienna, Austria.<br /><searchLink fieldCode="AU" term="%22Poimboeuf+M%22">Poimboeuf M</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Molina+CA%22">Molina CA</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Romero+R%22">Romero R</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Feng+J%22">Feng J</searchLink>; Department of General Internal Medicine and Health Services Research, University of California, Los Angeles, United States.<br /><searchLink fieldCode="AU" term="%22Friedman+JR%22">Friedman JR</searchLink>; Department of Psychiatry, University of California, San Diego, United States.
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              Text: 2025 Nov
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