Raad I, Ramos E, Hachem R, Jiang Y, Torres H, Al-Akhrass F, Kontoyiannis D, Safdar A. Are white blood cell transfusions useful in the salvage treatment of invasive aspergillosis in neutropenic hematologic malignancy patients? The 49th Annual Interscience Conference on Antimicrobial Agents and Chemotherapy, September 12-15th, 2009 San Francisco, CA