1. University of Texas MD Anderson Cancer Center, Houston, TX, USA
2. UCSD Moores Cancer Center, San Diego, CA, USA
3. Department I of Internal Medicine and Center of Integrated Oncology Cologne Aachen Cologne Bonn Düsseldorf, German CLL Study Group, University Hospital, University of Cologne, Cologne, Germany
4. AbbVie Inc., North Chicago, IL, USA
5. Genentech, Inc., South San Francisco, CA, USA
6. Peter MacCallum Cancer Centre, Royal Melbourne Hospital & University of Melbourne, Melbourne, VIC, Australia