Andreas Hillenbrand*, Uwe Knippschild, Manfred Weiss, Hubert Schrezenmeier, Doris Henne-Bruns, Markus Huber-Lang and Anna M Wolf
* Corresponding author: Andreas Hillenbrand Andreas.Hillenbrand@uniklinik-ulm.de
BMC Surgery 2010, 10:26 doi:10.1186/1471-2482-10-26
Fields marked * are required