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.
Wijeratne C, Hickie I, Schwartz R.Wijeratne C, et al.Aust N Z J Psychiatry. 1997 Oct;31(5):765-8. doi: 10.3109/00048679709062693.Aust N Z J Psychiatry. 1997.PMID: 9400885