[1] Dept. of General Surgery,
[2] University Hospital Eppendorf,undefined
[3] Martinistraße 52,undefined
[4] D-20246 Hamburg Tel.: +49-40-428032450,undefined
[5] Fax: +49-40-428036677,undefined
[6] Dept. of Hepatobiliary Surgery,undefined
[7] University Hospital Eppendorf,undefined
[8] Hamburg,undefined
[9] Dept. of Gynecology and Obstetrics,undefined
[10] University Hospital Eppendorf,undefined
[11] Hamburg,undefined
[12] Dept. of Anesthesiology,undefined
[13] University Hospital Eppendorf,undefined
[14] Hamburg,undefined
[15] Dept. of Gynecology and Obstetrics,undefined
[16] General Hospital Lüneburg,undefined