With the advance of serum thyrotropin ( TSH ) radio - immunoassay, subclinical hypothyroidism is diagnosed more and more frequently.
随着TSH放免技术的发展, 亚临床甲减的诊断率越来越高.
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It is not clear how subclinical hypothyroidism, where there is normal thyroxine, impairs fetal brain development.
妊娠期亚临床甲减影响后代智力发育的确切机制尚不清楚.
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