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.
Baldwin HA, File SE.Baldwin HA, et al. Among authors: file se.Psychopharmacology (Berl). 1989;97(3):424-6. doi: 10.1007/BF00439464.Psychopharmacology (Berl). 1989.PMID: 2497494