303,585 ABSTRACTS Abstracts of papers presented at the Thirtyfirst Annual Meeting of the American Society for Cell Biology 8-12 December, 1991, Boston, Massachusetts -New York : The Rockefeller University Press, 1991 - [6], 568 s. ; 28 cm (The Journal of Cell Biology, ISSN 0021-9525 ; vol. 115, nr 3, p. 2)