This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Uveal tract, Subject name: Ophthalmology
[{'content': 'All of the following has HLAB27 associated with uveitis except - \nSelect and explain. \nA. Ankylosing spondylitis, B. Reiters syndrome, C. Behcets syndrome, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ankylosing spondylitis and Reiters syndrome: both involves young males who are positive for HLA-B27. Behcets syndrome: The disease typically affects the young men who are positive for HLA-B51.', 'role': 'assistant'}]