1. Northwest Clinics; Radiology and Nuclear Medicine; PO box 501 Alkmaar Netherlands 1800 AM
2. Princess Máxima Center for Pediatric Oncology; Heidelberglaan 25 Utrecht Netherlands 3584 CS
3. Amsterdam UMC, University of Amsterdam; Nuclear Medicine and Radiology; P.O. Box 22660 Amsterdam Netherlands 1100 DD
4. F. Hoffmann-La Roche AG; iPODD Pediatric Oncology team, Pharma Development Oncology; Bldg/Room 682/332 Basel Switzerland 4070
5. Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University; Cochrane Netherlands; Room Str. 6.127 P.O. Box 85500 Utrecht Netherlands 3508 GA