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.
York RM, Perell-Gerson KL, Barr M, Durham J, Roper JM.York RM, et al. Among authors: roper jm.PM R. 2009 May;1(5):434-41. doi: 10.1016/j.pmrj.2009.03.001.PM R. 2009.PMID: 19627930Clinical Trial.
Canatsey K, Roper JM.Canatsey K, et al. Among authors: roper jm.Issues Ment Health Nurs. 1997 Jan-Feb;18(1):35-44. doi: 10.3109/01612849709006538.Issues Ment Health Nurs. 1997.PMID: 9052099