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.
Ackermann RF, Engel J Jr, Baxter L.Ackermann RF, et al.Ann N Y Acad Sci. 1986;462:263-9. doi: 10.1111/j.1749-6632.1986.tb51260.x.Ann N Y Acad Sci. 1986.PMID: 3486621No abstract available.
Engel J Jr, Ackermann RF, Kuhl DE, Phelps ME.Engel J Jr, et al. Among authors: ackermann rf.Res Publ Assoc Res Nerv Ment Dis. 1985;63:163-84.Res Publ Assoc Res Nerv Ment Dis. 1985.PMID: 3927456Review.No abstract available.