Name	Info	Provider	Link
	free resource	Clinical Care Targeted Communications Group, LLC	https://www.ajmc.com/pubMed.php?pii=11046
COPD	free resource	MedlinePlus Health Information	https://medlineplus.gov/copd.html
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:19284806