Name Info Provider Link
free resource American Academy of Family Physicians https://www.aafp.org/link_out?pmid=31845775
Flu free resource MedlinePlus Health Information https://medlineplus.gov/flu.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=31845775.ui