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Results 1 - 1 of 1 for Describing
  1. Spinal Muscular Atrophy (National Library of Medicine)  
    What is spinal muscular atrophy (SMA)? Spinal muscular atrophy (SMA) is a group of genetic diseases that damages and kills motor neurons. Motor neurons ...
    https://medlineplus.gov/spinalmuscularatrophy.html - Health Topics