期刊
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
卷 324, 期 16, 页码 1674-1677出版社
AMER MEDICAL ASSOC
DOI: 10.1001/jama.2020.17694
关键词
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资金
- Millennium Health LLC
This substance use epidemiology study uses a commercial urine drug testing (UDT) service's data to compare UDT results for cocaine, fentanyl, heroin, and methamphetamine before vs after US declaration of coronavirus disease 2019 (COVID-19) as a national emergency among patients diagnosed with or at risk of substance use disorders.
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