de Ru JA, Buwalda J (June 2008). “Botulinum toxin A injection into corrugator muscle for frontally localised chronic daily headache or chronic tension-type headache”. J Laryngol Otol123 (4): 1?6. doi:10.1017/S0022215108003198. PMID18588738.
Verhagen AP, Damen L, Berger MY, Passchier J, Koes BW (April 2010). “Lack of benefit for prophylactic drugs of tension-type headache in adults: a systematic review”. Fam Pract27 (2): 151?65. doi:10.1093/fampra/cmp089. PMID20028727.
Yurekli VA, Akhan G, Kutluhan S, Uzar E, Koyuncuoglu HR, Gultekin F (February 2008). “The effect of sodium valproate on chronic daily headache and its subgroups”. J Headache Pain9 (1): 37?41. doi:10.1007/s10194-008-0002-5. PMID18231713.
Nestoriuc Y, Rief W, Martin A (June 2008). “Meta-analysis of biofeedback for tension-type headache: efficacy, specificity, and treatment moderators”. J Consult Clin Psychol76 (3): 379?96. doi:10.1037/0022-006X.76.3.379. PMID18540732.
de Ru JA, Buwalda J (June 2008). “Botulinum toxin A injection into corrugator muscle for frontally localised chronic daily headache or chronic tension-type headache”. J Laryngol Otol123 (4): 1?6. doi:10.1017/S0022215108003198. PMID18588738.
Verhagen AP, Damen L, Berger MY, Passchier J, Koes BW (April 2010). “Lack of benefit for prophylactic drugs of tension-type headache in adults: a systematic review”. Fam Pract27 (2): 151?65. doi:10.1093/fampra/cmp089. PMID20028727.
Yurekli VA, Akhan G, Kutluhan S, Uzar E, Koyuncuoglu HR, Gultekin F (February 2008). “The effect of sodium valproate on chronic daily headache and its subgroups”. J Headache Pain9 (1): 37?41. doi:10.1007/s10194-008-0002-5. PMID18231713.
Nestoriuc Y, Rief W, Martin A (June 2008). “Meta-analysis of biofeedback for tension-type headache: efficacy, specificity, and treatment moderators”. J Consult Clin Psychol76 (3): 379?96. doi:10.1037/0022-006X.76.3.379. PMID18540732.