Chien, Yie W., 1938-, Novel drug delivery systems / Yie w. chien - 2 # ed. rev. and expanded - 797 páginas - Drugs and the pharmaceutical sciences ; v. 50 . ISBN: 0-8247-8520-7 (papel alcalino) Subjects--Topical Terms: Medicamentos--Efecto retardado LC Class. No.: RS201.C46 / C45 1992