Bile Duct Size in Normal Patients
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References:

1) Bowie JD. What Is the Upper Limit of Normal for the Common Bile Duct on Ultrasound? How
Much Do You Want It To Be? Am J Gastroenterol 2000;95:987-900
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2) Perret RS, Sloop GD, Borne JA. Common Bile Duct Measurements in an Elderly Population. J
Ultrasound Med 2000;19:727-730
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3) Bachar GN, Cohen M, Belenky A. Effect of Aging on the Adult Extrahepatic Bile Duct. J
Ultrasound Med 2003;22:879-882
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4) Kaim A, Steinke K, Enriquez R. Diameter of the common bile duct in the elderly patient:
measurement by ultrasound. Eur Radiol 1998;8:1413-1415
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5) Horrow MM, Horrow JC, Niakosari A. Is Age Associated with Size of Adult Extraheptic Bile
Duct: Sonographic Study. Radiology 2001;221:411-414
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6) Letters to the Editor in response to the article by Horrow et al. Radiology 2002;225(3):921-922
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7) Niederau C, Muller J, Sonnenberg A. Extrahepatic bile ducts in healthy subjects, in patients
with cholelithiasis, and in postcholecystectomy patients: a prospective ultrasonic study. J Clin
Ultrasound 1983;11(1):23-7
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8) Wu CC, Ho YH, Chen CY. Effect of aging on common bile duct diameter: a real-time
ultrasonographic study. J Clin Ultrasound 1984;12(8):473-478  
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