Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAbstract of Interest.PublicationHeadache: The Journal of Head & Face Pain, 1981, Vol 21, Issue 3, p117ISSN0017-8748Publication typeArticleDOI10.1111/j.1526-4610.1981.hed2103117.x