Voluntary reporting of employee influenza vaccination rates by acute care hospitals in Iowa: the impact of a four year provider-based statewide performance improvement project.
Helms C, Polgreen P, Polgreen L, Evans T, Roberts LL, Clabaugh G, Quinlisk P. Voluntary reporting of employee influenza vaccination rates by acute care hospitals in Iowa: the impact of a four year provider-based statewide performance improvement project. Vaccine. 2011 Apr 18; 29(18):3483-8.