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Roa I, Guzmán P, Araya JC, Villaseca M, Roa JC, Ibacache G, de Aretxabala X, García M.Roa I, et al. Among authors: guzman p.Rev Med Chil. 1998 Jan;126(1):42-8.Rev Med Chil. 1998.PMID: 9629753Spanish.
Roa I, de Aretxabala X, Araya JC, Villaseca M, Roa J, Burgos L, Guzmán P.Roa I, et al. Among authors: guzman p.Rev Med Chil. 2001 Sep;129(9):1013-20.Rev Med Chil. 2001.PMID: 11725464Spanish.
Roa I, de Aretxabala X, Araya JC, Villaseca M, Roa J, Guzmán P.Roa I, et al. Among authors: guzman p.Rev Med Chil. 2001 Oct;129(10):1113-20.Rev Med Chil. 2001.PMID: 11775337Spanish.
Roa I, de Aretxabala X, Roa J, Araya JC, Villaseca M, Guzmán P, Burgos L.Roa I, et al. Among authors: guzman p.Rev Med Chil. 2002 Nov;130(11):1295-302.Rev Med Chil. 2002.PMID: 12587514Spanish.
Araya JC, Roa JC, Villaseca MA, Roa I, Guzmán P, Alvarado C, Melo A.Araya JC, et al. Among authors: guzman p.Rev Med Chil. 2003 Apr;131(4):359-65.Rev Med Chil. 2003.PMID: 12870229Spanish.
Roa JC, Anabalón L, Tapia O, Martínez J, Araya JC, Villaseca M, Guzmán P, Roa I.Roa JC, et al. Among authors: guzman p.Rev Med Chil. 2004 Sep;132(9):1069-77.Rev Med Chil. 2004.PMID: 15543763Spanish.
Roa JC, Roa I, Correa P, Vo Q, Araya JC, Villaseca M, Guzmán P, Schneider BG.Roa JC, et al. Among authors: guzman p.J Gastroenterol. 2005 Jan;40(1):79-86. doi: 10.1007/s00535-004-1497-4.J Gastroenterol. 2005.PMID: 15692793
Araya JC, Anabalón L, Roá I, Bravo M, Villaseca MA, Guzmán P, Roa JC.Araya JC, et al. Among authors: guzman p.Rev Med Chil. 2004 Nov;132(11):1345-54. doi: 10.4067/s0034-98872004001100002.Rev Med Chil. 2004.PMID: 15693196Spanish.