Only Moderate Intra- and Inter-observer Agreement between Radiologists and Surgeons when Grading Blunt Paediatric Hepatic Injury on CT Scan - Nellensteijn, D. R.; Duis, H. J. ten; Oldenziel, J.; Polak, W. G.; Hulscher, J. B. F. (European Journal of Pediatric Surgery, 2009)