Name Info Provider Link
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/35991061/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/35991061
free resource Frontiers Media SA https://doi.org/10.3389/fpubh.2022.903557