Liposomal amphotericin B for empirical therapy in patients with persistent fever and neutropenia - Walsh,T.J.; Finberg,R.W.; Arndt,C.; Hiemenz,J.; Schwartz,C.; Bodensteiner,D.; Pappas,P.; Seibel,N.; Greenberg,R.N.; Dummer,S.; Schuster,M.; Holcenberg,J.S. (N Engl J Med, 1999)