... correspondence: Aer Lingus, Aeroflot, Air Berlin, Air Malta, Air France, Air Scotland, Alitalia, Austrian, bmi, British Airways, Brussels, Bulgaria Air, Condor, Croatia Airlines, Cyprus Airways, Czech Airlines, ... surgical department of an aca-demic teaching hospital (Department of General and VisceralSurgery, Augusta Krankenanstalt, Academic Teaching Hospi-tal of the Ruhr-University Bochum). A total of ... aircraft: a retrospective study of 10189 casesMichael Sand1,2, Falk-Georges Bechara2, Daniel Sand3 and Benno Mann11Department of General and Visceral Surgery, Augusta Krankenanstalt, Academic...