Other inherited spinal muscular atrophy

**Inclusion terms:** - Adult form spinal muscular atrophy - Childhood form, type II spinal muscular atrophy - Distal spinal muscular atrophy - Juvenile form, type III spinal muscular atrophy [Kugelberg-Welander] - Progressive bulbar palsy of childhood [Fazio-Londe] - Scapuloperoneal form spinal muscular atrophy