Autologous matrix induced chondrogenesis (AMIC) as revision procedure for failed AMIC in recurrent symptomatic osteochondral defects of the talus. - Migliorini, Filippo; Schenker, Hanno; Maffulli, Nicola; Eschweiler, Jörg; Lichte, Philipp; Hildebrand, Frank; Weber, Christian David (Scientific Reports, 2022)