Name	Info	Provider	Link
Secondhand Smoke	free resource	MedlinePlus Health Information	https://medlineplus.gov/secondhandsmoke.html
	free resource	NCI CPTAC Assay Portal	https://assays.cancer.gov/CPTAC-1595
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/ntr/article-lookup/doi/10.1093/ntr/ntz038