Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0166-3542(17)30180-8
Flu Shot free resource MedlinePlus Health Information https://medlineplus.gov/flushot.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28941982.ui
free resource scite Smart Citations https://scite.ai/reports/28941982