Headache. 2008 Jun 1;48(6):900-13.
Reduced habituation to experimental pain in migraine patients: a CO(2) laser evoked potential study.
Pain. 2003 Sep 1; 105 (1-2): 57-64.
Endometriosis is associated with prevalence of comorbid conditions in migraine.
Headache. 2007 Jul 1;47(7):1069-78.