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Bjarnason I, Smethurst P, Fenn CG, Lee CE, Menzies IS, Levi AJ.Bjarnason I, et al.Dig Dis Sci. 1989 Mar;34(3):407-11. doi: 10.1007/BF01536263.Dig Dis Sci. 1989.PMID: 2493366Clinical Trial.
Bjarnason I, Smethurst P, Clark P, Menzies I, Levi J, Peters T.Bjarnason I, et al.Scand J Gastroenterol Suppl. 1989;164:97-102; discussion 102-3. doi: 10.3109/00365528909091195.Scand J Gastroenterol Suppl. 1989.PMID: 2510288Clinical Trial.
Bjarnason I, Levi S, Smethurst P, Menzies IS, Levi AJ.Bjarnason I, et al.BMJ. 1988 Dec 24-31;297(6664):1629-31. doi: 10.1136/bmj.297.6664.1629.BMJ. 1988.PMID: 3147764Free PMC article.No abstract available.
Bjarnason I, Fehilly B, Smethurst P, Menzies IS, Levi AJ.Bjarnason I, et al.J Rheumatol Suppl. 1992 Nov;36:83-4.J Rheumatol Suppl. 1992.PMID: 1474542No abstract available.
Bjarnason I, Smethurst P, Levi AJ, Menzies IS, Peters TJ.Bjarnason I, et al.Scand J Gastroenterol. 1991 Jul;26(7):685-8. doi: 10.3109/00365529108998584.Scand J Gastroenterol. 1991.PMID: 1896808
Bjarnason I, Fehilly B, Smethurst P, Menzies IS, Levi AJ.Bjarnason I, et al.Gut. 1991 Mar;32(3):275-7. doi: 10.1136/gut.32.3.275.Gut. 1991.PMID: 1901563Free PMC article.
Bjarnason I, Hopkinson N, Zanelli G, Prouse P, Smethurst P, Gumpel JM, Levi AJ.Bjarnason I, et al.Gut. 1990 Jul;31(7):777-80. doi: 10.1136/gut.31.7.777.Gut. 1990.PMID: 1973396Free PMC article.