Does B-type natriuretic Peptide testing affect outcome and management of patients with acute dyspnea? - Dipaola F; Perego F; Solbiati M; Casazza G; Gruppo di Autoformazione Metodologica; Dipaola, Franca; Perego, Francesca; Solbiati, Monica; Casazza, Giovanni (Annals of Internal Medicine, 2009)