Name Info Provider Link
H1N1 Flu (Swine Flu) free resource MedlinePlus Health Information https://medlineplus.gov/h1n1fluswineflu.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=32484513.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32484513/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/32484513
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/jid/article-lookup/doi/10.1093/infdis/jiaa293