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Primary progressive multiple sclerosis
- Multiple Sclerosis (National Library of Medicine)Multiple sclerosis (MS) is a nervous system disease that affects your brain and spinal cord. It damages the myelin sheath, the material that surrounds and protects ...
- Degenerative Nerve Diseases (National Library of Medicine)Degenerative nerve diseases affect many of your body's activities, such as balance, movement, talking, breathing, and heart function. Many of these diseases are genetic. ...