Multiple sclerosis (MS) has been classically regarded as a disorder of the whitematterof the central nervoussystem (CNS).
多发性硬化症(MS)在传统上已被视为一种中枢神经系统(CNS)白质之异常。
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The researchers also found changes in deep-brain tissue called whitematter, through which messages pass between different areas of grey matter in the nervoussystem.