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.
Kelly MM, Chakir J, Vethanayagam D, Boulet LP, Laviolette M, Gauldie J, O'Byrne PM.Kelly MM, et al. Among authors: vethanayagam d.Chest. 2006 Sep;130(3):741-53. doi: 10.1378/chest.130.3.741.Chest. 2006.PMID: 16963671Clinical Trial.
Vethanayagam D, Pugsley S, Dunn EJ, Russell D, Kay JM, Allen C.Vethanayagam D, et al.Can Respir J. 2000 Jul-Aug;7(4):338-42. doi: 10.1155/2000/248915.Can Respir J. 2000.PMID: 10980460Free article.
Shrestha Palikhe N, Nahirney D, Laratta C, Gandhi VD, Vethanayagam D, Bhutani M, Mayers I, Cameron L, Vliagoftis H.Shrestha Palikhe N, et al. Among authors: vethanayagam d.PLoS One. 2015 Dec 14;10(12):e0144500. doi: 10.1371/journal.pone.0144500. eCollection 2015.PLoS One. 2015.PMID: 26658828Free PMC article.