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Liavåg I, Roland M.Liavåg I, et al.Scand J Gastroenterol. 1979;14(1):49-56. doi: 10.3109/00365527909179845.Scand J Gastroenterol. 1979.PMID: 424688Clinical Trial.
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Aase S, Roland M, Liavåg I, Dahl E.Aase S, et al. Among authors: liavag i.Scand J Gastroenterol. 1985 Apr;20(3):257-67. doi: 10.3109/00365528509091647.Scand J Gastroenterol. 1985.PMID: 4001835
Roland M, Berstad A, Liavåg I.Roland M, et al. Among authors: liavag i.Scand J Gastroenterol. 1974;9(6):511-8.Scand J Gastroenterol. 1974.PMID: 4607374Clinical Trial.No abstract available.
Schrumpf E, Roland M, Liavåg I.Schrumpf E, et al. Among authors: liavag i.Scand J Gastroenterol. 1974;9(2):115-8.Scand J Gastroenterol. 1974.PMID: 4818388No abstract available.