Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0197-0186(20)30287-4
Drug Use and Addiction	free resource	MedlinePlus Health Information	https://medlineplus.gov/druguseandaddiction.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=33159978.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33159978/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33159978
Drug Use and Addiction	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/druguseandaddiction.html
	free resource	scite Smart Citations	https://scite.ai/reports/33159978