Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=1570-159X&volume=13&issue=6&spage=815&aulast=Siniscalchi
Cocaine	free resource	MedlinePlus Health Information	https://medlineplus.gov/cocaine.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26630959/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26630959