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The outpatient evaluation of hematochezia.
Segal WN, Greenberg PD, Rockey DC, Cello JP, McQuaid KR. Segal WN, et al. Am J Gastroenterol. 1998 Feb;93(2):179-82. doi: 10.1111/j.1572-0241.1998.00179.x. Am J Gastroenterol. 1998. PMID: 9468237