Flu. Jabs for older and at-risk patients.
D000368:Aged; D002908:Chronic Disease; D006801:Humans; D017589:Immunization Programs / Q000706:statistics & numerical data*; D007252:Influenza Vaccines / Q000008:administration & dosage*; D012307:Risk Factors; D006113:United Kingdom
D007252:Influenza Vaccines