Wagner Verena M, Rosenbauer Joachim, Grabert Matthias, Holl Reinhard W
Department of Pediatrics, University Clinic Schleswig-Holstein, Campus Lübeck, Lübeck, Germany.
Eur J Pediatr. 2008 Feb;167(2):241-2. doi: 10.1007/s00431-007-0446-7. Epub 2007 Mar 22.