In hospital mortality in patients with acute decompensated heart failure requiring intravenous vasoactive medications: an analysis from the Acute Decompensated Heart Failure National Registry (ADHERE) - Abraham WT; Adams KF; Fonarow GC; Costanzo MR; Berkowitz RL; LeJemtel TH; Cheng ML; Wynne J; ADHERE Scientific Advisory Committee and Investigators; ADHERE Study Group (Journal of the American College of Cardiology (JACC), 2005)