Different types of neo-cartilage tissue fabricated from genetically-modified mesenchymal stem cells in collagen hydrogels using of TGF-BETA1, SOX-9 OR BMP-2 CDNA. (April 2016) - Steinert, A.F.; Kunz, M.; Reboredo, J.; Walles, H.; Groll, J.; Rudert, M.; Weissenberger, M.