EMG Test Spinal Muscular Atrophy: Definition, Cause and Prognosis
Spinal muscular atrophy (SMA) is a disease that affects the neurons in your spinal cord. Over time the disease can interfere with muscle control in any part of the body including those connected with breathing and swallowing. There are several types of SMA. The severity and progression of the disease depends on the type and how early symptoms first develop.
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