Through clinical observation and X-ray film examination of 116 congenital polydactylymalformations in 111 patients, on the base of which, a new classification for congenitalpolydactyly was proposed.
通过临床观察和X线摄片检查研究了111例患者116个先天性多指畸形，并在此基础上报道了一种新的先天性多指症的分类方法。
Methods: the chest X-ray device by the film clip, set frame, base, children sit down plate, protective aprons and so on.
方法：胸片装置由片夹、立架、底座、小儿坐立升降板、防护围裙等组成。
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