目的了解康复治疗对儿童精神发育迟滞的影响，并对患儿的预后进行初步探讨。
Objectives To study effect of rehabilitation treatment on children with mental retardation and inquire the prognosis of these children initially.
精神发育迟滞多是在儿童时期即被发现。
Mental development arrearage is in children period is discovered namely more.
目的确定秦巴山区宁强、柞水、安康调查点精神发育迟滞(MR)儿童的生物医学因素。
Objective to determine the biomedical factors of mental retardation (MR) children in investigation stations Ningqiang, Zhashui and Ankang in Qinba mountainous region.
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