GNRH1 and thyrotoxicosis: The dynamic endocrine stimulation tests with CRH, LH-RH, and GRH performed just after admission except TRH test which was performed after improvement of thyrotoxicosis are shown in Figure 1(a): a normal response of ACTH and delayed response of cortisol after CRH, low responses of TSH and PRL after TRH, a low response of LH and a delayed response of FSH after LH-RH, and a low response of GH after GRH.