Excerpt - page 618: "... other proteins within the gland may be iodinated, but these iodoproteins do not have hormonal activity. Thyroxine, T3, MIT, and DIT ..."
Excerpt - page 653: "... in sufficient formation of T4 and T3 in the abnormal iodoproteins to make the animals euthyroid. Although seemingly paradoxical, an excess ..."