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Results 1 - 1 of 1 for Severe limb shortening
  1. Spinal Muscular Atrophy (National Library of Medicine)  
    ... disease before 6 months of age. In more severe cases, the signs show up even before or just after birth (Types 0 or 1A). The babies may have trouble swallowing and breathing and may not move around a lot. They have chronic shortening of muscles or tendons (called contractures). They usually ...