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A collaborative study on the natural history of childhood and juvenile onset proximal spinal muscular atrophy (type II and III SMA): 569 patients

Neuromusculoskeletal DisorderSpinal DisorderNatural HistoryPediatricsCollaborative StudyDegenerative DiseasePediatric SpineNeuropathologyMedicineType IiNeuromuscular DisordersOrthopaedic Surgery