Event related potential P300 are an availably deliberated index to cognize function when lead poisoning of children have not clinical symptom in the earlier period.
由于P 300潜伏期与儿童的认知功能有关，故事件相关电位P 300有可能作为无临床表现的铅中毒儿童早期认知功能评价的有效指标。
In the process of treating, not only the clinical symptom and sign, but also electrocardiogram, myocardium and cardiac function were observed.
治疗过程中除了观察临床症状及体征外，并观察心电图及心肌酶谱、心功能。
The light degree dilation of intrahepatic bile duct were found in whose clinical symptom and sign were not clear and obvious.
无明显临床症状和体征者肝内胆管为轻微或轻度扩张。
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