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September 19, 1936


JAMA. 1936;107(12):985. doi:10.1001/jama.1936.02770380067025

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To the Editor:—  I was very much interested in the communication from Dr. Harry Koster and Dr. Arthur Shapiro in the August 1 issue of The Journal relative to the method they used in studying the pressure within the common bile duct. Our failure to read their article is attributable to the fact that it was hidden in their paper, which was entitled "On the Rate of Secretion of Bile."In discussing with physicist Charles Sheard the question of intraductal pressure, I obtained permission to quote him as follows: "The intraductal pressure, as has been pointed out by Koster, Shapiro and Lerner, should include, in addition to the reading of the manometer attached to the T-tube, the equivalent vertical height from the point of entrance of the tube in the abdomen to the end of the common duct. In the report of the investigations on pressure in the common bile

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