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Lunel-Fabiani F, Guivarch P, Valla D, Grippon P, Marques MA, Huraux JM, Le Charpentier Y, Levy VG, Bousquet O, Opolon P.Lunel-Fabiani F, et al. Among authors: opolon p.Gastroenterol Clin Biol. 1990;14(10):705-9.Gastroenterol Clin Biol. 1990.PMID: 2124569French.