Letters Seroepidemiology By AS Evans See allHide authors and affiliations Science 17 Aug 1984:Vol. 225, Issue 4663, pp. 671-672DOI: 10.1126/science.6463645 AS Evans Find 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 above.
Science Vol 225, Issue 466317 August 1984 Table of Contents Print Table of Contents Ed Board (PDF) Front Matter (PDF)