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.
Widiger TA, Costa PT Jr.Widiger TA, et al. Among authors: costa pt jr.J Pers. 2012 Dec;80(6):1471-506. doi: 10.1111/j.1467-6494.2012.00776.x.J Pers. 2012.PMID: 22320149
Yang J, McCrae RR, Costa PT Jr, Yao S, Dai X, Cai T, Gao B.Yang J, et al. Among authors: costa pt jr.J Pers Disord. 2000 Fall;14(3):249-63. doi: 10.1521/pedi.2000.14.3.249.J Pers Disord. 2000.PMID: 11019748