Lippman E. R. D. Developments in Aging Research: I. Free Radicals—A Primary Cause of Aging: Abstracts from the Symposium, Biomedical Center and the Institute for Gerontology, University of Uppsala, Uppsala, Sweden, November 27, 1980. Upsala Journal of Medical Sciences, v. 86, n. 3, p. 319-322, 1 Sep. 1981.