TI  - Update: Influenza activity—united states, 2011-12 season and composition of the 2012-13 influenza vaccine
PT  - JOUR
DP  - 2012
TA  - JAMA
pages = {854-858},
VI  - 308
IP  - 9
AID  -  [doi]
4100  - http://dx.doi.org/
SO  - JAMA September 5, 2012 308(9):854