Vaccine/Immunotherapy News http://www.mdlinx.com/IDLinx/news.cfm/newspage/1/spec_id/12/subspec_id/501 Vaccine/Immunotherapy en-us Copyright 2009 MDLinx, Inc. <![CDATA[Evidence of Bias in Studies of Influenza Vaccine Effectiveness in Elderly Patients]]> http://www.mdlinx.com/IDLinx/xml-article.cfm/2977911 12/18/2009 The Journal of Infectious Diseases]]> http://www.mdlinx.com/IDLinx/xml-article.cfm/2977911