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Ekberg-Jansson A, Andersson B, Bake B, Boijsen M, Enanden I, Rosengren A, Skoogh BE, Tylén U, Venge P, Löfdahl CG.Ekberg-Jansson A, et al.Respir Med. 2001 May;95(5):363-73. doi: 10.1053/rmed.2001.1050.Respir Med. 2001.PMID: 11392577Free article.
Tylén U, Boijsen M, Ekberg-Jansson A, Bake B, Löfdahl CG.Tylén U, et al.Respir Med. 2000 Jan;94(1):38-43. doi: 10.1053/rmed.1999.0690.Respir Med. 2000.PMID: 10714477Free article.
Ekberg-Jansson A, Larson M, MacNee W, Tunek A, Wahlgren L, Wouters EF, Larsson S.Ekberg-Jansson A, et al.Eur Respir J. 1999 Apr;13(4):829-34. doi: 10.1034/j.1399-3003.1999.13d22.x.Eur Respir J. 1999.PMID: 10362048Free article.Clinical Trial.