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curves for thyroxine and T3 were no different among the four products used in these trials.  On the left are the thyroxine and free thyroxine index and on the upper right is the T3 levels.  My visual assessment of the T3 data underscores the limitations of using the applied statistical methods which are quite similar to the current standards to detect apparent differences in the profiles of this parameter.

Scrutiny of the TSH values from Dr. Dong's study, although not clearly delineated in their data set, demonstrates that these basal TSH levels along the left axis, to my visual assessment, may very well be important in light of the narrow therapeutic ranges now being suggested in that very tight target range for TSH titration.  I do believe that a TSH of 2, for example, might very well be different than a TSH of 4, and certainly this degree of difference would likely be considered significant if the patient sitting in front of you was giving you symptoms consistent with hypothyroidism.

Most importantly, this graph demonstrates the individual patient TSH values from this study and they seem to indicate that a consistent TSH classification, as

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