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Ahmed A, Samuels SL, Keeffe EB, Cheung RC.Ahmed A, et al. Among authors: keeffe eb.Am J Gastroenterol. 2001 Jan;96(1):233-7. doi: 10.1111/j.1572-0241.2001.03482.x.Am J Gastroenterol. 2001.PMID: 11197259
Ahmed A, Keeffe EB.Ahmed A, et al. Among authors: keeffe eb.Am J Gastroenterol. 1999 Jan;94(1):249-51. doi: 10.1111/j.1572-0241.1999.00808.x.Am J Gastroenterol. 1999.PMID: 9934765
Ahmed A, Keeffe EB.Ahmed A, et al. Among authors: keeffe eb.Am J Gastroenterol. 1998 Dec;93(12):2598-9. doi: 10.1111/j.1572-0241.1998.00732.x.Am J Gastroenterol. 1998.PMID: 9860439No abstract available.
Ahmed A, Keeffe EB.Ahmed A, et al. Among authors: keeffe eb.Gastroenterology. 2004 May;126(5):1409-15. doi: 10.1053/j.gastro.2004.02.073.Gastroenterology. 2004.PMID: 15131801Review.No abstract available.
Ahmed A, Keeffe EB.Ahmed A, et al. Among authors: keeffe eb.J Gastroenterol Hepatol. 1999 May;14 Suppl:S12-8. doi: 10.1046/j.1440-1746.1999.01875.x.J Gastroenterol Hepatol. 1999.PMID: 10382632Review.
Ahmed A, Keeffe EB.Ahmed A, et al. Among authors: keeffe eb.West J Med. 2000 Jan;172(1):29-32. doi: 10.1136/ewjm.172.1.29.West J Med. 2000.PMID: 10695442Free PMC article.No abstract available.