Collaborative data collection by TREAT-NMD Registries to support post-marketing surveillance in Spinal Muscular Atrophy, Rodrigues, Miriam, Bullivant JoAnne, Hodgkinson Victoria, TREAT-NMD Registry Curators, Jagut Marlène, Straub Volker, Goemans Nathalie, Ambrosini Anna, and Campbell Craig , TREAT-NMD conference, 12/2019, Leiden, The Netherlands, (2019)