1. Department of Surgery; Nordsjaellands Hospital; Copenhagen University Hospital; Hillerød Denmark
2. Department of Gynaecology and Obstetrics; Herlev Hospital; Copenhagen University Hospital; Herlev Denmark
3. Department of Anaesthesiology; Herlev Hospital; Copenhagen University Hospital; Herlev Denmark
4. Department of Surgery; Køge Sygehus; Copenhagen University Hospital; Køge Denmark