Hadlow

This is Hadlow / Baloch / Persani. How does the Hoerman graph fit in here (from https://thyroidpatients.ca/2019/12/15/relational-stability-part-2-normality/)?

Baloch is using a different reference range than Hadlow. Has that been adjusted? Does it need to be adjusted? We are fitting the user’s results into Hadlow…

The Relationship Between TSH and Free T₄ in a Large Population Is Complex and Nonlinear and Differs by Age and Sex

Gullo: LT4 monotherapy and thyroid loss invert FT3 and FT4 per unit of TSH