| Affiliation: | 1. Division of Hematology and Oncology, Department of Medicine, University of California, San Francisco, California, USA;2. Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA;3. Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA;4. Division of Hematology and Oncology, Department of Medicine, University of California, San Francisco, California, USA Department of Epidemiology and Biostatistics, University of California, San Francisco, California, USA |
