Stimpson, Georgia, Ramsey, Danielle, Wolfe, Amy, Mayhew, Anna, Scoto, Mariacristina, Baranello, Giovanni, Muni Lofra, Robert, Main, Marion, Milev, Evelin, Coratti, Giorgia, Pane, Marika, Sansone, Valeria, D’Amico, Adele, Bertini, Enrico, Messina, Sonia, Bruno, Claudio, Albamonte, Emilio, Mazzone, Elena Stacy, Montes, Jacqueline, Glanzman, Allan M., Zolkipli-Cunningham, Zarazuela, Pasternak, Amy, Duong, Tina, Dunaway Young, Sally, Civitello, Matthew, Marini-Bettolo, Chiara, Day, John W., Darras, Basil T., De Vivo, Darryl C., Finkel, Richard S., Mercuri, Eugenio and Muntoni, Francesco (2023) 2-year change in revised Hammersmith scale scores in a large cohort of untreated paediatric type 2 and 3 SMA participants. Journal of Clinical Medicine, 12 (5). ISSN 2077-0383