Development of a Mixed-Reality Application for Volitional Step Training in People With Multiple Sclerosis: Cross-Sectional Qualitative User-Centered Co-Design Study. Perachiotti G, Busch I M, Vallefuoco E, D'Errico G, Moccaldi N, Straudi S, Arpaia P JMIR Serious Games. 2026 Sep 14; 14:e94312. PMID: 42735903. Abstract CommentRecommendBookmarkWatch