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.
Otto DM, Moon TW.Otto DM, et al.Arch Environ Contam Toxicol. 1996 Jul;31(1):141-7. doi: 10.1007/BF00203918.Arch Environ Contam Toxicol. 1996.PMID: 8688001
Otto DM, Lindström-Seppä P, Sen CK.Otto DM, et al.Ecotoxicol Environ Saf. 1994 Apr;27(3):265-80. doi: 10.1006/eesa.1994.1021.Ecotoxicol Environ Saf. 1994.PMID: 7519546