Task: Answer Verification
Input (English): Question: Do genetic variations of IL17F and IL23A show associations with Behçet 's disease and Vogt-Koyanagi-Harada syndrome?
Answer: High gene copy numbers of IL17F and IL23A were associated with BD and VKH syndrome. Enhanced IL17F protein production and PBMC proliferation were associated with high IL17F copy numbers.
Output (English): yes