Influenza prevention 2001-2002.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000998:Antiviral Agents / Q000008:administration & dosage / Q000191:economics / Q000627:therapeutic use; D002648:Child; D002675:Child, Preschool; D005252:Fees, Pharmaceutical; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000600:supply & distribution; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D013997:Time Factors
D000998:Antiviral Agents; D007252:Influenza Vaccines