manualofmedicine.com/topics/endocri…

Thyroid Troubles: Hyperthyroidism and Thyrotoxicosis - Manual of Medicine

Thyrotoxicosis results from an excess of circulating free T4 and free T3. Hyperthyroidism indicates...

manualofmedicine.com/topics/endocri…

Thyroid Troubles: Understanding Hypothyroidism - Manual of Medicine

Hypothyroidism results from deficiency of thyroxine (T4) or tri-iodothyronine (T3). Common presentin...