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.
Guttersrud O, Dalane JØ, Pettersen S.Guttersrud O, et al.Public Health Nutr. 2014 Apr;17(4):877-83. doi: 10.1017/S1368980013000530. Epub 2013 Mar 11.Public Health Nutr. 2014.PMID: 23472785Free PMC article.
Austvoll-Dahlgren A, Guttersrud Ø, Nsangi A, Semakula D, Oxman AD; IHC Group.Austvoll-Dahlgren A, et al. Among authors: guttersrud o.BMJ Open. 2017 May 25;7(5):e013185. doi: 10.1136/bmjopen-2016-013185.BMJ Open. 2017.PMID: 28550019Free PMC article.