Secondary amenorrhoea affects about 3% of girls.

中学闭经影响的3 %左右的女孩。

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Secondary amenorrhoea implies a gynaecological disorder or a general cause or disease.

中学闭经意味着妇科失常或一般事业或疾病。

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Secondary amenorrhoea implies a gynaecological disorder or a general cause or disease.

中学闭经意味着妇科失常或一般事业或疾病。

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