持续长时间牵拉造成神经肌肉接头处的损害亦导致肌肉去神经支配。

Damage to the neuromuscular junction following prolonged retraction can also lead to muscle denervation.

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目的探讨重症肌无力（MG）和癌性肌病（LEMS）时神经肌肉接头处（NMJ）的病理变化特点及其意义。

Objective The pathological changes on neuromuscular junction (NMJ) in the patients with myasthenia gravis (MG) or LambertEaton myasthenia syndrome (LEMS) were investigated comparatively.

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