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.
Hakala E, Pyy L.Hakala E, et al. Among authors: pyy l.Toxicol Lett. 1995 May;77(1-3):249-58. doi: 10.1016/0378-4274(95)03304-1.Toxicol Lett. 1995.PMID: 7618147
Pyy L, Mäkelä M, Hakala E, Kakko K, Lapinlampi T, Lisko A, Yrjänheikki E, Vähäkangas K.Pyy L, et al.Sci Total Environ. 1997 Jun 20;199(1-2):151-8. doi: 10.1016/s0048-9697(97)00065-x.Sci Total Environ. 1997.PMID: 9200858