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Ribeiro A, DeVault KR, Wolfe JT 3rd, Stark ME.Ribeiro A, et al. Among authors: devault kr.Gastrointest Endosc. 1998 Jun;47(6):525-8. doi: 10.1016/s0016-5107(98)70256-1.Gastrointest Endosc. 1998.PMID: 9647380No abstract available.