An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Boudewyns A, Grillier-Lanoir V, Willemen MJ, De Cock WA, Van de Heyning PH, De Backer WA.Boudewyns A, et al. Among authors: willemen mj.Thorax. 1999 Feb;54(2):147-9. doi: 10.1136/thx.54.2.147.Thorax. 1999.PMID: 10325921Free PMC article.
Heyrman RM, De Backer WA, Van Waeleghem JP, Willemen MJ, Vermeire PA, De Broe ME.Heyrman RM, et al. Among authors: willemen mj.Eur Respir J. 1989 Nov;2(10):972-6.Eur Respir J. 1989.PMID: 2606198
Verbraecken JA, Willemen M, De Cock W, Coen E, Van de Heyning P, De Backer W.Verbraecken JA, et al.Respiration. 1995;62(6):355-8. doi: 10.1159/000196480.Respiration. 1995.PMID: 8552869
Verbraecken J, De Backer W, Willemen M, De Cock W, Wittesaele W, Van de Heyning.Verbraecken J, et al.Respir Physiol. 1995 Sep;101(3):279-87. doi: 10.1016/0034-5687(95)00037-e.Respir Physiol. 1995.PMID: 8607000Clinical Trial.
Boudewyns A, De Cock W, Willemen M, Wagemans M, De Backer W, Van de Heyning PH.Boudewyns A, et al.Eur Respir J. 1997 Jan;10(1):129-32. doi: 10.1183/09031936.97.10010129.Eur Respir J. 1997.PMID: 9032504Free article.