Name	Info	Provider	Link
	subscription/membership/fee required	Ingenta plc	https://www.ingentaconnect.com/openurl?genre=article&issn=0025-7974&volume=102&issue=24&spage=e33845&aulast=He
Collapsed Lung	free resource	MedlinePlus Health Information	https://medlineplus.gov/collapsedlung.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=37327273.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/37327273/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/37327273
	free resource	Wolters Kluwer	https://doi.org/10.1097/MD.0000000000033845