见别的儿童返学而自己被拒门外，会严重伤害儿童的心理，他们会觉得自己是不正常的，是被社会遗弃的一群。
When children are turned away from school serious psychological damage is inflicted. They feel as if they are abnormal, abandoned by the community.
目的：研究左心扩大性疾病瓣膜返流情况、心腔形态学改变以及心功能的变化。
Objective The purpose of the investigation was to study valvular regurgitation, morphological changes and left ventricular function in patients with left ventricular enlargement.
目的：采用彩色多普勒血流显像技术，评价由不同病因引起的二尖瓣返流形态学特征。
Objective: To evaluate vary cases morphology character of mitral regurgitation caused by different causes by Color Doppler Flowing Imaging (CDFI).
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