Research News Fetal Antigens: A Biochemical Assay for Cancer? + See all authors and affiliations Science 12 Apr 1974:Vol. 184, Issue 4133, pp. 147-148DOI: 10.1126/science.184.4133.147 Thomas H. MaughFind 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.