SPINA-Thyr is a free diagnostic application, developed by Dr. Johannes Dietrich.
The software application takes thyroid laboratory test values TSH, Free T4 and Free T3 and performs calculations that enable in-depth evaluation of thyroid function, pituitary function, and T4-T3 conversion for people who are on no thyroid therapy or T4-monotherapy (Levothyroxine only).
This is an excellent post written by Dr. Tania S. Smith explaining about SPINA-Thyr and how to use it. It also explains in one of the references how anyone can download it.
Here is the link:
https://thyroidpatients.ca/2019/06/21/analyze-thyroid-lab-results-spina-thyr/
Best wishes,
Paul
