Published on in Vol 17 , No 11 (2015) :November

1 University Children’s Hospital Düsseldorf , Department of General Pediatrics, Neonatology and Pediatric Cardiology , Heinrich-Heine-University , Düsseldorf , DE
2 Center of Bioinformatics and Biostatistics , Mathematical Institute , Heinrich-Heine-University , Düsseldorf , DE
3 University Hospital Düsseldorf , Staff Unit Quality Management and Patient Safety , Heinrich-Heine-University , Düsseldorf , DE