Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleSample size review in a head injury trial with ordered categorical responses.AuthorsBolland, K.; Sooriyarachchi, M. R.; Whitehead, J.PublicationStatistics in Medicine, 1998, Vol 17, Issue 24, p2835ISSN0277-6715Publication typejournal articleDOI10.1002/(SICI)1097-0258(19981230)17:24<2835::AID-SIM933>3.0.CO;2-8