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subclinical hyperthyroidism

Subclinical hyperthyroidism, referred to as subclinical hyperthyroidism for short, refers to thyroid diseases that have no clinical symptoms, or whose symptoms are imprecise and nonspecific. Although serum FT3 and FT4 are within the normal range, serum TSH is lower than the reference range, excluding other diseases that may cause the decrease of serum TSH, and are only diagnosed by laboratory examination results. ...

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