Name	Info	Provider	Link
Free full text from BORIS	free resource	Bern Open Repository and Information System	https://boris.unibe.ch/id/eprint/159602
COVID-19 (Coronavirus Disease 2019)	free resource	MedlinePlus Health Information	https://medlineplus.gov/covid19coronavirusdisease2019.html
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pmed.1003772
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34516558/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34516558