Name	Info	Provider	Link
E-Cigarettes	free resource	MedlinePlus Health Information	https://medlineplus.gov/ecigarettes.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28444993.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28444993/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/28444993
	subscription/membership/fee required	Wiley	https://doi.org/10.1002/em.22091
	free resource	scite Smart Citations	https://scite.ai/reports/28444993