Am Fam Physician. 1999;59(6):1412
The article “Practical Management of Treatment-Resistant Depression” (December 1998, page 2059) contained an incorrect dosage. The dosage range suggested for the thyroid hormone tri-iodothyronine (T3 [Cytomel]), given in the first complete paragraph of the second column on page 2061, should be 25 to 50 μg.