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	subscription/membership/fee required	Atypon	https://www.ajph.org/doi/10.2105/AJPH.2021.306168?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
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=33734849.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33734849/
Drug Use and Addiction	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/druguseandaddiction.html
	free resource	scite Smart Citations	https://scite.ai/reports/33734849