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.
Harrop HA, Held KD, Michael BD.Harrop HA, et al.Int J Radiat Biol. 1991 May;59(5):1237-51. doi: 10.1080/09553009114551111.Int J Radiat Biol. 1991.PMID: 1675241
Michael BD, Harrop HA, Maughan RL, Patel KB.Michael BD, et al. Among authors: harrop ha.Br J Cancer Suppl. 1978 Jun;3:29-33.Br J Cancer Suppl. 1978.PMID: 354678Free PMC article.
Gates PN, Harrop HA, Pridham JB, Smethurst B.Gates PN, et al. Among authors: harrop ha.Sci Total Environ. 1997 Oct 20;205(2-3):215-21. doi: 10.1016/s0048-9697(97)00203-9.Sci Total Environ. 1997.PMID: 9372631