Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0003-9993(16)31237-0
COPD	free resource	MedlinePlus Health Information	https://medlineplus.gov/copd.html
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0003-9993(16)31237-0
	free resource	scite Smart Citations	https://scite.ai/reports/27866992