Name Info Provider Link
free resource JMIR Publications https://www.jmir.org/2022/10/e38710/
Flu Shot free resource MedlinePlus Health Information https://medlineplus.gov/flushot.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/36206046/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/36206046