Effect of the Frequency of Delivery of Reminders and an Influenza Tool Kit on Increasing Influenza Vaccination Rates Among Adults With High-risk ConditionsByFaruque Ahmed, PhD,Carol Friedman, DO,Adele Franks, MD,Lisa M. Latts, MD, MSPH,Elizabeth W. Nugent, MSPH,Eric K. France, MD, MSPH,Paul Stange, MPH,Serigne Ndiaye, PhDOctober 1st 2004