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. 2020 Sep 14;217:108286. doi: 10.1016/j.drugalcdep.2020.108286

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Fig. 1 — The National Drug Early Warning System (NDEWS).

CEWG: Community Epidemiology Workgroup; SAG: Scientific Advisory Group; NIDA: National Institute on Drug Abuse; GIS: geographic information system, NFLIS: National Forensic Laboratory Information System; ED: emergency department.