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Lanza FL, Graham DY, Davis RE, Rack MF.Lanza FL, et al. Among authors: graham dy.Dig Dis Sci. 1990 Dec;35(12):1494-9. doi: 10.1007/BF01540567.Dig Dis Sci. 1990.PMID: 2253535Clinical Trial.
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Markesich DC, Sawai ET, Butel JS, Graham DY.Markesich DC, et al. Among authors: graham dy.Dig Dis Sci. 1991 Apr;36(4):454-60. doi: 10.1007/BF01298874.Dig Dis Sci. 1991.PMID: 1901035