1Division of Gastroenterology, University of Tennessee, Memphis, Tennessee USA Reprint requests and correspondence: Caroline A Riely, MD, FACG, Division of Gastroenterology, University of Tennessee, Room 555-Dobbs, 951 Court Avenue, Memphis, TN 38163 Received February. 9, 1999; accepted February. 18, 1999
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C A Riely (1999) studied this question.
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