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Bak YT, Lorang M, Evans PR, Kellow JE, Jones MP, Smith RC.Bak YT, et al. Among authors: kellow je.Scand J Gastroenterol. 1994 May;29(5):392-7. doi: 10.3109/00365529409096828.Scand J Gastroenterol. 1994.PMID: 8036453