This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Judkins technique used for? \nSelect and explain. \nA. Central venous line placement, B. Coronary aeriography, C. Renal aniography, D. Chest tube inseion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Catheters used for performing coronary angiography the femoral aery were developed by Melvin Judkins, MD; thus, the method often is referred to as the Judkins technique. This widely used method requires separate preformed catheters for the right and left coronary aeries . Ref -davidson 23rd edition pg 491', 'role': 'assistant'}]