Validation of a german language questionnaire for screening for migraine, tension-type headache, and trigeminal autonomic cephalgias.
Fritsche G, Hueppe M, Kukava M, Dzagnidze A, Schuerks M, Yoon MS, Diener HC, Katsarava Z. Validation of a german language questionnaire for screening for migraine, tension-type headache, and trigeminal autonomic cephalgias. Headache. 2007 Apr; 47(4):546-51.