Name	Info	Provider	Link
	free resource	Atypon	https://journals.physiology.org/doi/10.1152/ajplung.00463.2021?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
COVID-19 (Coronavirus Disease 2019)	free resource	MedlinePlus Health Information	https://medlineplus.gov/covid19coronavirusdisease2019.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34786993/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34786993