found: Medical applications of controlled release, 1984- :v. 1, CIP t.p. (R. S. Langer, asst. prof., nutr. biochem., Dept. of Nutr. and Food Sci., Mass. Inst. of Tech.) pref. (Langer, Robert S., Ph.D., M.I.T.) book t.p. (Robert S. Langer)
found: Biodegradable polymers as drug delivery systems, c1990:CIP t.p. (Robert Langer, Mass. Inst. of Tech., Cambridge, Mass.) list of contrib., etc. (Dept. of Chemical Engineering, MIT; b. 8/29/48)
found: Phone call to editor, 6/20/90(Robert Langer is Robert S. Langer)
