National Guideline Clearinghouse: Influenza vaccination of health-care personnel. Recommendations of the Healthcare Infection Control Practices Advisory Committee (HICPAC) and the Advisory Committee on Immunization Practices (ACIP) –
http://www.guideline.gov/content.aspx?id=8697
Centers for Disease Control and Prevention: Immunization of Health-Care Workers: Recommendations of the Advisory Committee on Immunization Practices (ACIP) and the Hospital Infection Control Practices Advisory Committee (HICPAC) –
http://www.cdc.gov/mmwr/preview/mmwrhtml/00050577.htm