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Reply. Parkman HP, Hasler WL, Nguyen L, Pasricha PJ, Snape WJ, Farrugia G, Koch KL, Calles J, Abell TL, McCallum RW, Yates K, Lee L, Unalp-Arida A, Tonascia J, Hamilton F Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association, 2012 Jun, Volume 10, Issue 6, p.686-7, (2012)