Triiodothyronine (T3) and Thyroxine (T4):
Thyroid gland is an important butterfly-shaped endocrine gland, it sits low on the front of the neck.
The Thyroid gland secreted two hormones into the blood, that are Triiodothyronine (T3) and Thyroxine (T4).
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Thyroid gland problems,symptoms,causes and treatment
