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Introduction and clinical pathology of Amyotrophic Lateral Sclerosis (ALS) Amyotrophic Lateral Sclerosis (ALS) also known as Lou Gehrig's disease is the generic name for progressive muscular atrophy and bulbar palsy. It refers to all disorders of the cortico spinal pathways which are characterized by progressive muscle weakness. After multiple sclerosis, ALS is the most common purely neurological disorder (Janiszewski et al. 1983). Information available from the ALS Society indicates that the most common age of onset is 55 years.
Sauter et al. (Fri,) studied this question.
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