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.
Niklasson U, Wiklund U, Bjerle P, Olofsson BO.Niklasson U, et al. Among authors: wiklund u.Clin Physiol. 1993 Jan;13(1):71-9. doi: 10.1111/j.1475-097x.1993.tb00318.x.Clin Physiol. 1993.PMID: 8435978
Wiklund U, Koskinen LO, Niklasson U, Bjerle P, Elfversson J.Wiklund U, et al.Acta Neurochir (Wien). 2000;142(6):691-6. doi: 10.1007/s007010070114.Acta Neurochir (Wien). 2000.PMID: 10949445