1. From the Department of Pathology, University Medical Center, Utrecht, the Netherlands (Ms Ottenhof, Drs Milne, ten Kate, and Offerhaus, and Mr Morsink); the Department of Pathology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (Dr Drillenburg); and the Department of Pathology, The Sol Goldman Pancreatic Research Center, The Johns Hopkins Medical Institution, Baltimore, Maryland (Dr Mait