1. Division of Neonatology and Pediatric Intensive Care, Department of Pediatrics, University Hospital Erlangen University of Erlangen‐Nürnberg Erlangen Germany
2. Institute of Functional and Applied Anatomy Hannover Medical School Hannover Germany
3. Department for Medical Statistics and Biomathematics University Hospital Mannheim Mannheim Germany
4. Department of Pediatrics, University Hospital Erlangen University of Erlangen‐Nürnberg Erlangen Germany
5. Institute of Pathology University of Heidelberg Heidelberg Germany