Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcpulmmed.biomedcentral.com/articles/10.1186/s12890-020-1098-x
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32178660/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/32178660