Improving the use of evidence-based heart failure therapies in the outpatient setting: the IMPROVE HF performance improvement registry.
Fonarow GC, Yancy CW, Albert NM, Curtis AB, Stough WG, Gheorghiade M, Heywood JT, Mehra M, O'Connor CM, Reynolds D, et al. Am Heart J. 2007 Jul; 154(1):12-38.