Affiliation: | 1.Department of General Surgery Resident,Jeroen Bosch Hospital,‘s Hertogenbosch,The Netherlands;2.Department of Surgery,University Medical Center Utrecht,Utrecht,The Netherlands;3.Department of Surgery,Groene Hart Ziekenhuis,Gouda,The Netherlands;4.Department of Surgery,Leiden University Medical Center,Leiden,The Netherlands;5.Department of Medical Statistics and Bioinformatics,Leiden University Medical Center,Leiden,The Netherlands;6.Leiden University Mathematical Institute,Leiden,The Netherlands;7.Performation,Bilthoven,The Netherlands;8.X-IS,Delft,The Netherlands |