1. Department of Pediatric Oncology/HematologyBeatrix Children's HospitalUniversity Medical Center GroningenUniversity of Groningen Groningen 9713 The Netherlands
2. Department of BioengineeringRice University Houston TX 77030 USA
3. Department of Biomedical EngineeringUniversity of Texas San Antonio San Antonio TX 78429 USA
4. Department of LeukemiaThe University of Texas MD Anderson Cancer Center Houston TX 77030‐4009 USA
5. The University of Texas Graduate School of Biomedical Sciences at Houston Houston TX 77030 USA
6. Department of HematopathologyThe University of Texas MD Anderson Cancer Center Houston TX 77030 USA
7. Hematology and Oncology Fellowship ProgramCancer Medicine DivisionThe University of Texas MD Anderson Cancer Center Houston TX 77030 USA