Book Reviews Vignettes: Design and Intervention See allHide authors and affiliations Science 18 Jun 1993:Vol. 260, Issue 5115, pp. 1828DOI: 10.1126/science.260.5115.1828 Article Info & Metrics eLetters PDF This is a PDF-only article. The first page of the PDF of this article appears below.
Science Vol 260, Issue 511518 June 1993 Table of Contents Print Table of Contents Back Matter (PDF) Ed Board (PDF) Front Matter (PDF)