thyroid hormones: triiodothyronine, t3, levothyroxine and thyroxine,t4 molecule. used to treat hypothyroidism. structural

triiodothyronine thyroxine thyroid hormone tbg tsh liothyronine hypothyroidism pituitary gland hormonep hormonal iodine supplement tetraiodothyronine thyroglobulin globulin iodo liothyronin nitrogen thyroidstimulating thyronine thyroperoxidase triiodothyronin tyrosine hydrogen carbon oxygen organic chemistry structural formula atomic molecule structure chemical atom molecular vector hormones: levothyroxine used treat model molecule hypothyroidism