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.
Mackie TR, Bielajew AF, Rogers DW, Battista JJ.Mackie TR, et al. Among authors: bielajew af.Phys Med Biol. 1988 Jan;33(1):1-20. doi: 10.1088/0031-9155/33/1/001.Phys Med Biol. 1988.PMID: 3353444
Ma CM, Rogers DW, Shortt KR, Ross CK, Nahum AE, Bielajew AF.Ma CM, et al. Among authors: bielajew af.Med Phys. 1993 Mar-Apr;20(2 Pt 1):283-92. doi: 10.1118/1.597128.Med Phys. 1993.PMID: 8497212