Name	Info	Provider	Link
Sleep Apnea	free resource	MedlinePlus Health Information	https://medlineplus.gov/sleepapnea.html
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:6344828
	subscription/membership/fee required	Silverchair Information Systems	https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/vol/143/pg/1221