The SD70ACe-T4 has suffered from reliability problems and slow sales ... Instead, the successors to the SD40, ES44, and the SD70, and even the AC44C6M, will likely be the SD40, the ES44, the SD70, and ...
However, knowing one's TSH may be insufficient at times. For instance, free T4 and TSH are usually tested if a healthcare provider suspects thyroid dysfunction due to disease of the pituitary gland or ...
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