Name	Info	Provider	Link
Drug Use and Addiction	free resource	MedlinePlus Health Information	https://medlineplus.gov/druguseandaddiction.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22547174/
	subscription/membership/fee required	Springer	https://dx.doi.org/10.1007/s00439-012-1172-4
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22547174
Drug Use and Addiction	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/druguseandaddiction.html