Age is not only criterion for flu vaccine.
J S
JS
Nguyen-Van-Tam
M H
MH
Kyaw
J C
JC
Pearson
D000367:Age Factors; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D010342:Patient Acceptance of Health Care
D007252:Influenza Vaccines