Letters Letter To The Editor See allHide authors and affiliations Science 19 Jun 1992:Vol. 256, Issue 5064, pp. 1614DOI: 10.1126/science.256.5064.1614-c Denise GallowayFind this author on Google Scholar Find this author on PubMed Search for this author on this site Maxine LinialFind this author on Google Scholar Find this author on PubMed Search for this author on this site Virginia ZakianFind this author on Google Scholar Find this author on PubMed Search for this author on this site Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 256, Issue 506419 June 1992 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)
