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.
Engeland A, Bjørge T, Klungsøyr K, Skurtveit S, Furu K.Engeland A, et al. Among authors: skurtveit s.Pharmacoepidemiol Drug Saf. 2017 Jul;26(7):742-751. doi: 10.1002/pds.4174. Epub 2017 Feb 7.Pharmacoepidemiol Drug Saf. 2017.PMID: 28168780
Engeland A, Bjørge T, Klungsøyr K, Hjellvik V, Skurtveit S, Furu K.Engeland A, et al. Among authors: skurtveit s.Pharmacoepidemiol Drug Saf. 2018 Sep;27(9):995-1004. doi: 10.1002/pds.4577. Epub 2018 Jun 19.Pharmacoepidemiol Drug Saf. 2018.PMID: 29920833
Tverdal A, Skurtveit S.Tverdal A, et al. Among authors: skurtveit s.Ann Epidemiol. 2003 Jul;13(6):419-23. doi: 10.1016/s1047-2797(02)00462-3.Ann Epidemiol. 2003.PMID: 12875799