Control of Drug   Release with a Combination of Prodrug and Polymer Matrix: Antitumor Activity and Release Profiles of 2',3'-Diacyl-5-　Fluoro-2'-Deoxy-　uridine from Poly (3-hydroxybutyrate) Microspheres　

P. 508-512   T. Kawaguchi, A. Tsugane, K.Higashide, H. Endoh, T. Hasegawa, H. Kanno, T. Seki, K. Juni, S. Fukushima, M. Nakano

J. Pharm. Sci.,　81巻6号