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.
Leibel SA, Scott CB, Mohiuddin M, Marcial VA, Coia LR, Davis LW, Fuks Z.Leibel SA, et al.Int J Radiat Oncol Biol Phys. 1991 Aug;21(3):549-56. doi: 10.1016/0360-3016(91)90669-u.Int J Radiat Oncol Biol Phys. 1991.PMID: 1869453Clinical Trial.