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.
Dyer CA, Hill SL, Stockley RA, Sinclair AJ.Dyer CA, et al. Among authors: stockley ra.Eur Respir J. 1999 Jul;14(1):39-45. doi: 10.1034/j.1399-3003.1999.14a09.x.Eur Respir J. 1999.PMID: 10489827Free article.
Hill AT, Bayley DL, Campbell EJ, Hill SL, Stockley RA.Hill AT, et al. Among authors: stockley ra.Eur Respir J. 2000 May;15(5):886-90. doi: 10.1034/j.1399-3003.2000.15e12.x.Eur Respir J. 2000.PMID: 10853853Free article.