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.
Cotter JJ, McDonald KA, Parker DA, McClish DK, Pugh CB, Bovbjerg VE, Tipton GA, Rossiter LF, Smith WR.Cotter JJ, et al. Among authors: pugh cb.Eval Health Prof. 2000 Dec;23(4):397-408. doi: 10.1177/01632780022034688.Eval Health Prof. 2000.PMID: 11139867