Task: Answer Verification
Input (English): Question: Does the route of administration ( oral vs intravenous ) influence dose or outcome in Graves ' disease and unifocal autonomy?
Answer: The causes of individual differences between targeted and therapeutically achieved doses remain undetermined. Variations in the bioavailability of radioiodide or other parameters affecting thyroid status may be involved, and further investigations are needed to clarify this.
Output (English): no