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.
Lensing SY, Gillaspy SR, Simpson PM, Jones SM, James JM.Lensing SY, et al. Among authors: simpson pm.Eval Health Prof. 2000 Sep;23(3):349-60.Eval Health Prof. 2000.PMID: 11067195
Lieh-Lai MW, Kauffman RE, Uy HG, Danjin M, Simpson PM.Lieh-Lai MW, et al. Among authors: simpson pm.Crit Care Med. 1999 Dec;27(12):2786-91. doi: 10.1097/00003246-199912000-00030.Crit Care Med. 1999.PMID: 10628627Clinical Trial.