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随着医学科学技术的发展和医疗条件的改善，早产儿的存活率有所提高。出生体重小于１０００克、孕周小于２８周的早产儿存活已不是罕事。早产儿存活者中约１０％～２０％留有不同的伤残~（１）。无伤残者中由于各器官系统发育均不成熟，特别是神经系统发育不成熟，日后的智能发育是否与正常儿相同，所见报道不多。因此，我们对部分早产儿进行了追踪随访，现报告情况如下：
With the development of medical science and technology and the improvement of medical conditions, the survival rate of premature children has increased. Birth weight of less than 1000 grams, gestational age less than 28 weeks of survival of premature children is not uncommon. About 10% to 20% of survivors of premature babies have different disabilities ~ (1). Because of the immaturity of the organs and organs of all the non-disabled, especially the nervous system is not mature, the future of intellectual development is the same with normal children, seen little. Therefore, we follow-up some of the preterm infants, the report is as follows: