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.
Boerrigter BG, Boonstra A, Westerhof N, Postmus PE, Vonk-Noordegraaf A.Boerrigter BG, et al. Among authors: boonstra a.Eur Respir J. 2011 Apr;37(4):960-2. doi: 10.1183/09031936.00058410.Eur Respir J. 2011.PMID: 21454898Free article.No abstract available.
Roeleveld RJ, Vonk Noordegraaf A, van der Bij W, Postmus PE, Boonstra A.Roeleveld RJ, et al. Among authors: boonstra a.Eur Respir J. 2003 Jan;21(1):192-4. doi: 10.1183/09031936.03.00020902.Eur Respir J. 2003.PMID: 12570128Free article.
Smit HJ, Vonk-Noordegraaf A, Marcus JT, van der Weijden S, Postmus PE, de Vries PM, Boonstra A.Smit HJ, et al. Among authors: boonstra a.Chest. 2003 Jun;123(6):1803-9. doi: 10.1378/chest.123.6.1803.Chest. 2003.PMID: 12796153
Vonk Noordegraaf A, Paul MA, Boonstra AB, Postmus PE.Vonk Noordegraaf A, et al. Among authors: boonstra ab.Ned Tijdschr Geneeskd. 2004 Jan 10;148(2):53-6.Ned Tijdschr Geneeskd. 2004.PMID: 14753123Dutch.