Name	Info	Provider	Link
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/34604572/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34604572
	free resource	Pacini Editore	https://doi.org/10.15167/2421-4248/jpmh2021.62.2.1700