Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLetters to the Editor.PublicationDevelopmental Medicine & Child Neurology, 1979, Vol 21, Issue 6, p822ISSN0012-1622Publication typeArticleDOI10.1111/j.1469-8749.1979.tb01711.x