According to the involved area and illness course, MND can be divided into several types, but amyotrophic lateral sclerosis(ALS) and progressive muscular atrophy(PMA) are the main types.
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- 根據病變累及部位及病程可分為許多類(lèi)型，其中最主要的有肌萎縮側索硬化（Amyotrophic lateralsclerosis，ALS）和進(jìn)行性脊肌萎縮癥（Progressive muscular atrophy，PMA）。
