| Affiliation: | 1. Department I of Internal Medicine and Center of Integrated Oncology Cologne‐Bonn, German CLL Study group, University of Cologne, Cologne, GermanyContributed equally.;2. Department I of Internal Medicine and Center of Integrated Oncology Cologne‐Bonn, German CLL Study group, University of Cologne, Cologne, Germany;3. Department II of Internal Medicine, University Hospital Schleswig‐Holstein, Kiel, Germany;4. Department III of Internal Medicine, University Hospital Ulm, Ulm, Germany;5. Institute for Medical Statistic and Epidemiology, Technical University, Munich, Germany;6. MOP Elisenhof, Munich, Germany |
