N. Breslau, L.E. Schultz, W.F. Stewart, R.B. Lipton, V.C. Lucia, and K.M.A. Welch Headache and major depression. Is the association specific to migraine? Neurology 54 2000 308 313
A.E. Janke, K.A. Holroyd, and K. Romanek Depression increases onset of tension-type headache following laboratory stress Pain 111 2004 230 238
K.R. Merikangas, D.E. Stevens, and J. Angst Psychopathology and headache syndromes in the community Headache 34 1994 S17 S26
J. Schoenen Tension-type headache: pathophysiologic evidence for a disturbance of 'limbic' pathways to the brain stem Headache 30 1990 314 315
J. Schoenen Tension-type headache H.C. Diener In 'Drug treatment of migraine and other headaches' Monogr Clin Neurosci vol. 17 2000 Basel Karger 314 321