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.
Timchalk C, Dryzga MD, Smith FA, Bartels MJ.Timchalk C, et al. Among authors: smith fa.Toxicology. 1991;68(3):291-306. doi: 10.1016/0300-483x(91)90076-d.Toxicology. 1991.PMID: 1897000
Bartels MJ, Timchalk C, Smith FA.Bartels MJ, et al. Among authors: smith fa.Biol Mass Spectrom. 1993 Mar;22(3):194-200. doi: 10.1002/bms.1200220309.Biol Mass Spectrom. 1993.PMID: 8384886
Hayes WC, Smith FA, John JA, Rao KS.Hayes WC, et al. Among authors: smith fa.Fundam Appl Toxicol. 1984 Feb;4(1):91-7. doi: 10.1016/0272-0590(84)90222-7.Fundam Appl Toxicol. 1984.PMID: 6693005