14159623-n
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唐氏 综合症, 糖式 症候群, 伸舌 样 白痴, 唐氏综合症, 蒙古症, 伸舌样白痴, 糖式症候群 |
mongolism, mongolianism, Down's syndrome, Down syndrome, trisomy 21 |
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a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation |
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