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.
Bjørndal A, Arntzen E, Johansen A.Bjørndal A, et al.Scand J Prim Health Care. 1994 Sep;12(3):209-13. doi: 10.3109/02813439409003701.Scand J Prim Health Care. 1994.PMID: 7997701
Bjørndal A, Fugelli P.Bjørndal A, et al.Scand J Prim Health Care. 1989 Jun;7(2):67-71. doi: 10.3109/02813438909088649.Scand J Prim Health Care. 1989.PMID: 2587861
Midthjell K, Bjørndal A, Holmen J, Krüger O, Bjartveit K.Midthjell K, et al. Among authors: bjorndal a.Scand J Prim Health Care. 1995 Sep;13(3):229-35. doi: 10.3109/02813439508996766.Scand J Prim Health Care. 1995.PMID: 7481177