[1] Dept. of Surgery,
[2] University of Freiburg,undefined
[3] Hugstetter Str. 55,undefined
[4] D-79106 Freiburg i. Br,undefined
[5] Germany; Phone: (+49/761) 270-2644,undefined
[6] Fax: -2804,undefined
[7] e-mail: adam@chir.ukl.uni-freiburg.de,undefined
[8] Dept. of Surgery University of Rostock,undefined
[9] Schillingallee 35,undefined
[10] D-18057 Rostock,undefined
[11] Germany,undefined
[12] Dept. of Clinical Pharmacology University of Rostock,undefined
[13] Schillingallee 35,undefined
[14] D-18057 Rostock,undefined
[15] Germany,undefined