1. The International Classification of Headache Disorders, 2nd edn;Cephalalgia,2004
2. Headache attributed to whiplash injury;Kasch,2006
3. Disorder of the skull and cervical spine;Gobel,2006
4. The neck and headaches;Bogduk;Neurol Clin N Am,2004
5. Cervicogenic headache;Bogduk,2008