2. How to Get Permanent Relief From Chronic Tension Headaches
I would highly recommend that anyone who suffers from chronic tension headaches avail themselves to this remarkable treatment. Simply put, tension headaches come from muscle tension in your neck, shoulders and upper back.
http://www.tensionheadaches.com/

3. Tp Bilimleri Dergisi - Current Issue 2007 Vol: 27 No: 4
Cervicogenic headache is a relatively common form of headache arising from structures of the neck. Indexed or Abstracted in: 3 Kas m 2007 Cumartesi. 33 ya ndaki hem Organ ba bir. Profes r tutukland Eczane Hizmetleri.
http://tipbilimleri.turkiyeklinikleri.com/

4. Canadian Academy of Manipulative Therapy - Home
Cervicogenic Headaches. A Manual and Manipulative Therapy interest Group Which Supports and Upholds Orthopractic Guidelines for the Practice of Manual Therapy. Manual and Manipulative Therapy Patients:
http://manipulativetherapy.org/