Name	Info	Provider	Link
Caffeine	free resource	MedlinePlus Health Information	https://medlineplus.gov/caffeine.html
	free resource	scite Smart Citations	https://scite.ai/reports/33585896
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/cercor/article-lookup/doi/10.1093/cercor/bhab005