Results The overall results are summarized in the Table I. Relationship Between Post-surgery onT4-Tg, rhTSH-Tg and offT4-Tg A significant positive relationship was found between onT4-Tg and both rhTSH-Tg (p<.0001) and offT4-Tg (p<0.0001) (Figure 1, A-B-C) as well as between rhTSH and offT4-stimulated Tg (p<.0001).