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.
Weckesser M, Fixmann A, Holschbach M, Müller-Gärtner HW.Weckesser M, et al.Nucl Med Biol. 1998 Nov;25(8):777-80. doi: 10.1016/s0969-8051(98)00039-0.Nucl Med Biol. 1998.PMID: 9863566