Three-dimensional ultrasound cholangiography: a new noninvasive technique for evaluation of biliary obstruction (Comment on: Am J Gastroenterol. 2001 Jul;96(7):1959-60, Am J Gastroenterol. 2001 Jul;96(7):2074-80). Huenerbein, M. and Stroszczynski, C. and Felix, R. and Schlag, P.M. American Journal of Gastroenterology 97 (2): 500-501. February 2002
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