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.
Hajdu A, Vold L, Østmo TA, Helleve A, Helgebostad SR, Krogh T, Robertson L, de Jong B, Nygård K.Hajdu A, et al. Among authors: vold l.BMC Infect Dis. 2008 Nov 1;8:152. doi: 10.1186/1471-2334-8-152.BMC Infect Dis. 2008.PMID: 18976495Free PMC article.
MacDonald E, Vestrheim DF, White RA, Konsmo K, Lange H, Aase A, Nygård K, Stefanoff P, Aaberge I, Vold L.MacDonald E, et al. Among authors: vold l.BMC Public Health. 2016 Aug 5;16:729. doi: 10.1186/s12889-016-3346-9.BMC Public Health. 2016.PMID: 27495236Free PMC article.