1. Departments of Pediatric Endocrinology (N.M.M.L.S., B.J.O.), 6500 HB Nijmegen, The Netherlands
2. Nuclear Medicine (W.J.G.O.), 6500 HB Nijmegen, The Netherlands
3. Medical Technology Assessment (G.-J.v.d.W.), 6500 HB Nijmegen, The Netherlands
4. Endocrinology (A.R.M.M.H.), University Medical Center Nijmegen, 6500 HB Nijmegen, The Netherlands