Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA Hard Act To Follow.AuthorsCampbell, J. KeithPublicationHeadache: The Journal of Head & Face Pain, 1992, Vol 32, Issue 1, p57ISSN0017-8748Publication typeArticleDOI10.1111/j.1526-4610.1992.hed3201057.x