The positive rate of symptoms of peripheral nerves, central nerves and psychogeny except auditory and visual hallucination after poisoning was significantly higher than that before(P<0.05).
患者中毒后周围神经系统症状和体征阳性率、中枢神经系统症状阳性率、各种精神症状阳性率（除幻听幻视外）均高于中毒前，差异有统计学意义（P<0.05）；
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