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染色体结构的改变种类繁多,环状染色体是其中之一,但少见。据查阅资料,15号环状染色体的报道至今仅有22例,国内尚未见报道。病例摘要
Chromosome changes in the structure of a wide variety of circular chromosomes is one of them, but rare. According to access to information, 15 circular chromosomes reported so far only 22 cases, has not been reported in China. Case summary