TY - JOUR A1 - Seo, Y.B. A1 - Choi, W.S. A1 - Baek, J.H. A1 - Lee, J. A1 - Song, J.Y. A1 - Lee, J.S. A1 - Cheong, H.J. A1 - Kim, W.J. T1 - Effectiveness of the influenza vaccine at preventing hospitalization due to acute exacerbation of cardiopulmonary disease in Korea from 2011 to 2012 Y1 - 2014 DO - 10.4161/hv.26858 JF - Human Vaccines and Immunotherapeutics VL - 10 IS - 2 ER -