Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S1525-8610(20)30492-8
Nursing Homes free resource MedlinePlus Health Information https://medlineplus.gov/nursinghomes.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32674829/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/32674829
Full text from free resource White Rose Research Online https://eprints.whiterose.ac.uk/161834/