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.
Hayes D Jr, Ballard HO.Hayes D Jr, et al. Among authors: ballard ho.Chron Respir Dis. 2009;6(1):49-52. doi: 10.1177/1479972308099990.Chron Respir Dis. 2009.PMID: 19176714Free article.
Hayes D Jr, Anstead MI, Warner RT, Kuhn RJ, Ballard HO.Hayes D Jr, et al. Among authors: ballard ho.Am J Health Syst Pharm. 2010 May 1;67(9):737-40. doi: 10.2146/ajhp080188.Am J Health Syst Pharm. 2010.PMID: 20410549
Hayes D Jr, Meyer KC, Ballard HO.Hayes D Jr, et al. Among authors: ballard ho.Respir Care. 2009 Apr;54(4):542-3.Respir Care. 2009.PMID: 19327191Free article.No abstract available.
Hayes D Jr, Meadows JT Jr, Murphy BS, Feola DJ, Shook LA, Ballard HO.Hayes D Jr, et al. Among authors: ballard ho.Prim Care Respir J. 2011 Jun;20(2):128-33. doi: 10.4104/pcrj.2011.00002.Prim Care Respir J. 2011.PMID: 21336467Free PMC article.Review.
Hayes D Jr, Roessler-Henderson KM, Davenport SM, Collins PB, Ballard HO.Hayes D Jr, et al. Among authors: ballard ho.Respir Care. 2010 May;55(5):626-9.Respir Care. 2010.PMID: 20420735Free article.No abstract available.