1. Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, MD, USA
2. US Oncology, Willamette Valley Cancer Institute and Research Center, Eugene, OR, USA
3. Weill Cornell Medicine, New York, NY, USA
4. Memorial Sloan Kettering Cancer Center, New York, NY, USA
5. CLL Center, Dana-Farber Cancer Institute, Boston, MA, USA
6. Medical University of Lodz, Lodz, Poland
7. Gilead Sciences, Inc, Foster City, CA, USA
8. University of Washington/Fred Hutchinson Cancer Research Center, Seattle, WA, USA