Name	Info	Provider	Link
	free resource	BioMed Central	https://ccforum.biomedcentral.com/articles/10.1186/s13054-015-1030-6
Collapsed Lung	free resource	MedlinePlus Health Information	https://medlineplus.gov/collapsedlung.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26345706/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/26345706
	free resource	scite Smart Citations	https://scite.ai/reports/26345706