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.
Kojicic M, Li G, Ahmed A, Thakur L, Trillo-Alvarez C, Cartin-Ceba R, Gay PC, Gajic O.Kojicic M, et al. Among authors: gay pc.Respir Care. 2011 Nov;56(11):1765-70. doi: 10.4187/respcare.01096. Epub 2011 May 20.Respir Care. 2011.PMID: 21605480Free PMC article.