Spinal muscular atrophy (SMA) is a rare genetic disorder that causes severe muscle weakness. SMA usually affects children, and is typically diagnosed in the first 18 months of life. In its most ...
Spinal muscular atrophy (SMA) is a genetic disease that causes muscle weakness and wasting, known as atrophy. People with SMA often have difficulties moving, swallowing, sitting up, and sometimes ...
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