%0 Journal Article %T Is headache only headache? Comorbidity of headaches and mental disorders %A Akyildiz, K. %A Sercan, M. %A Yildiz, N. %A Cevik, A. %A Kiyan, A. %J Dusunen Adam Journal of Psychiatry and Neurological Sciences %D 2015 %V 28 %P 34-46 %R 10.5350/DAJPN2015280104