Serum free triiodothyronine as an adjunctive marker for thyroid hormone status in athyreotic patients on levothyroxine
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Context: Athyreotic patients receiving levothyroxine (LT4) for hypothyroidism sometimes exhibit low serum free triiodothyronine (FT3) levels despite normal TSH, and experience hypothyroid-like symptoms and signs, suggesting reduc... ...
