Arthroscopic autologous chondrocyte implantation in osteochondral lesions of the talus: mid-term T2-mapping MRI evaluation. - Battaglia, Milva; Vannini, Francesca; Buda, Roberto; Cavallo, Marco; Ruffilli, Alberto; Monti, Carlo; Galletti, Stefano; Giannini, Sandro (Knee Surgery, Sports Traumatology, Arthroscopy, 2011)