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1·No pathogenic mutation was detected in the exon and franking regions of MYH9 gene except a synonymous mutation.

除同义突变外，在 MYH9 基因的外显子和弗兰克区域未检测到致病突变。

2·No pathogenic mutation was detected in the exon and franking regions of MYH9 gene except a synonymous mutation(A1143A) in the exon 25.

MYH9基因40个外显子和侧翼区未见致病突变（除25号外显子发生一同义突变，突变类型为A1143A）。