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Alikhan M, Rex D, Khan A, Rahmani E, Cummings O, Ulbright TM.Alikhan M, et al.Gastrointest Endosc. 1999 Jul;50(1):23-6. doi: 10.1016/s0016-5107(99)70339-1.Gastrointest Endosc. 1999.PMID: 10385717
Rex DK, Alikhan M, Cummings O, Ulbright TM.Rex DK, et al.Gastrointest Endosc. 1999 Oct;50(4):468-74. doi: 10.1016/s0016-5107(99)70067-2.Gastrointest Endosc. 1999.PMID: 10502165
Kernek KM, Brunelli M, Ulbright TM, Eble JN, Martignoni G, Zhang S, Michael H, Cummings OW, Cheng L.Kernek KM, et al. Among authors: cummings ow.Mod Pathol. 2004 Nov;17(11):1309-13. doi: 10.1038/modpathol.3800195.Mod Pathol. 2004.PMID: 15167939Free article.