From the Centers for Disease Control and Prevention. Delayed influenza vaccine availability for 2001-02 season and supplemental recommendations of the Advisory Committee on Immunization Practices.
D006801:Humans; D007252:Influenza Vaccines / Q000600:supply & distribution*; D007251:Influenza, Human / Q000517:prevention & control; D012621:Seasons; D014481:United States; D014611:Vaccination / Q000592:standards
D007252:Influenza Vaccines