title: Standardized cartilage biopsies from the intercondylar notch for autologous chondrocyte implantation (ACI).
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Freiburg University Hospital, Hugstetter Strasse 55, 79106, Freiburg, Germany. philipp.niemeyer@uniklinik-freiburg.de
authors.forename: Philipp
authors.initials: P
authors.lastname: Niemeyer
authors.forename: Jan M
authors.initials: JM
authors.lastname: Pestka
authors.forename: Peter C
authors.initials: PC
authors.lastname: Kreuz
authors.forename: Gian M
authors.initials: GM
authors.lastname: Salzmann
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Köstler
authors.forename: Norbert P
authors.initials: NP
authors.lastname: Südkamp
authors.forename: Matthias
authors.initials: M
authors.lastname: Steinwachs