This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
[{'content': "Superior rib notching is seen in all except \nSelect and explain. \nA. SLE, B. Marfan's, C. Sjogren's, D. Taussig Blalock operation", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Taussig Blalock operation - Inferior notching.', 'role': 'assistant'}]