Editing Cluster headache (section)

== Society and culture ==
Robert Shapiro, a professor of neurology, says that while cluster headaches are about as common as [[multiple sclerosis]] with a similar disability level, as of 2013, the US [[National Institutes of Health]] had spent $1.872 billion on research into multiple sclerosis in one decade, but less than $2 million on cluster headache research in 25 years.<ref name=Unlocking>{{cite news |url= https://www.usatoday.com/story/news/nation/2013/05/16/researcher-unlocking-mysteries-migraines/2165363/ |title= Researcher works to unlock mysteries of migraines |author= Johnson, Tim |work= USA Today |date= 16 May 2013 |access-date= 4 January 2013 |url-status= live |archive-url= https://web.archive.org/web/20130517025701/http://www.usatoday.com/story/news/nation/2013/05/16/researcher-unlocking-mysteries-migraines/2165363/ |archive-date= 17 May 2013 }}</ref>