Pediatric Cardiology, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands
Fax. +31 (0)50 3614235, e-mail: [email protected]
On behalf the guest editors: Freek van den Heuvel, M.D., Ph.D., Isabelle C. van Gelder, M.D., Ph.D., Peter P. Karpawich, M.D., Rolf M.F. Berger, M.D., Ph.D., University Medical Center Groningen, The Netherlands
