1. Blood pressure and risk of headache: a prospective study of 22 685 adults in Norway. Issue 4 (1st April 2002) Authors: Hagen, K; Stovner, L J; Vatten, L; Holmen, J; Zwart, J-A; Bovim, G Journal: Journal of neurology, neurosurgery and psychiatry Issue: Volume 72:Issue 4(2002) Page Start: 463 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗