Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0960-894X(10)01787-7
Pulmonary Disease	free resource	Genetic Alliance	https://www.diseaseinfosearch.org/result/6084
COPD	free resource	MedlinePlus Health Information	https://medlineplus.gov/copd.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21511470/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21511470