Lenker for faglig informasjon

European headache federation: http://www.ehf-org.org/

International headache society: http://www.i-h-s.org/

World headache alliance: http://www.w-h-a.org/

Pubmed: http://www.ncbi.nlm.nih.gov/sites/entrez/

Cochrane library: http://mrw.interscience.wiley.com/cochrane/cochrane_search_fs.html

BMJ(british med. journal), oppsummert forskning: http://clinicalevidence.bmj.com/ceweb/help/index.jsp