1 Division of Hospitalist Medicine, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles. Electronic address: bnzhang@mednet.ucla.edu.
2 Division of Hematology and Oncology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles.
3 Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles.
4 Division of Hematology and Oncology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles; Institute of Urologic Oncology, Department of Urology, David Geffen School of Medicine, University of California Los Angeles.