Effects of nurse management on the quality of heart failure care in minority communities: a randomized trial. - Sisk JE; Hebert PL; Horowitz CR; McLaughlin MA; Wang JJ; Chassin MR; Sisk, Jane E; Hebert, Paul L; Horowitz, Carol R; McLaughlin, Mary Ann; Wang, Jason J; Chassin, Mark R (Annals of Internal Medicine, 2006)