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.
Lien N, Klepp KI.Lien N, et al. Among authors: klepp ki.Tidsskr Nor Laegeforen. 1999 Jun 20;119(16):2327-30.Tidsskr Nor Laegeforen. 1999.PMID: 10414196Norwegian.
Lien N, Friestad C, Klepp KI.Lien N, et al. Among authors: klepp ki.J Epidemiol Community Health. 2001 Oct;55(10):731-7. doi: 10.1136/jech.55.10.731.J Epidemiol Community Health. 2001.PMID: 11553657Free PMC article.
Lien N, Jacobs DR Jr, Klepp KI.Lien N, et al. Among authors: klepp ki.Public Health Nutr. 2002 Oct;5(5):671-81. doi: 10.1079/PHN2002334.Public Health Nutr. 2002.PMID: 12372162
Bere E, Klepp KI.Bere E, et al. Among authors: klepp ki.Public Health Nutr. 2004 Apr;7(2):353-6. doi: 10.1079/PHN2003529.Public Health Nutr. 2004.PMID: 15003144
Bere E, Klepp KI.Bere E, et al. Among authors: klepp ki.Public Health Nutr. 2004 Dec;7(8):991-8. doi: 10.1079/PHN2004619.Public Health Nutr. 2004.PMID: 15548337