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I just watched "The Exorcist" for the first time in years. One thing that I didn't appreciate before is the look into the diagnostic tests of Neurology back then. Before the days of true fluoro and femoral sticks, they did direct carotid sticks and did arteriograms with huge machines that exposed a series of flat plates. They also show a pneumoencephalogram, which looks excruciatingly painful. It's amazing how far we've come since then.
