Perspectives Mechanisms of DNA excision repair By A Sancar See allHide authors and affiliations Science 23 Dec 1994:Vol. 266, Issue 5193, pp. 1954-1956DOI: 10.1126/science.7801120 A Sancar 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.