News & Comment Rehabilitation for Burt? See allHide authors and affiliations Science 04 Jan 1991:Vol. 251, Issue 4989, pp. 27DOI: 10.1126/science.251.4989.27 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 251, Issue 498904 January 1991 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)