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de Vries DR, ter Linde JJ, van Boxel OS, van Herwaarden MA, Shephard P, Geng MM, Schwartz MP, Samsom M.de Vries DR, et al. Among authors: van boxel os.Dig Dis Sci. 2012 Jun;57(6):1475-85. doi: 10.1007/s10620-012-2064-0. Epub 2012 Feb 16.Dig Dis Sci. 2012.PMID: 22350785