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  1. Amyotrophic lateral sclerosis (ALS) - Symptoms and causes

  2. ALS (Amyotrophic Lateral Sclerosis): What It Is & Symptoms

  3. What is ALS? - Amyotrophic Lateral Sclerosis - The ALS Association

  4. Amyotrophic Lateral Sclerosis (ALS) | National Institute of ...

  5. Amyotrophic Lateral Sclerosis (ALS) - Johns Hopkins Medicine

  6. ALS - Wikipedia

  7. Amyotrophic lateral sclerosis (ALS) - Mayo Clinic

  8. ALS (Lou Gehrig's Disease): Causes, Symptoms & Treatment

  9. What is Amyotrophic lateral sclerosis (ALS)? - Centers for …

  10. Amyotrophic Lateral Sclerosis | ALS | Lou Gehrig's disease