Name Info Provider Link
free resource Ingenta plc http://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2019.24.31.1800488
H1N1 Flu (Swine Flu) free resource MedlinePlus Health Information https://medlineplus.gov/h1n1fluswineflu.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31387673/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/31387673