1. Department of Hematology, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, The Netherlands;
2. Department of Internal Medicine, Franciscus Gasthuis & Vlietland, Rotterdam, The Netherlands;
3. Erasmus School of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands;
4. Shaare Zedek Medical Center, Jerusalem, Israel; and
5. Fred Hutchinson Cancer Research Center and University of Washington, Seattle, WA