] Objective To compare repetitive nerve stimulation (RNS) of anconeus muscle,triangular muscle and abductor digitiminimi(ADM) muscle in diagnosis of myasthenia gravis(MG).

• 目的比较肘肌、三角肌、小指展肌重复神经电刺激（RNS）对重症肌无力（MG）的诊断价值。