TY - RPRT TI - Polymeric systems for controlled drug release. AU - K E Uhrich AU - S M Cannizzaro AU - R S Langer AU - K M Shakesheff PY - 1999 DO - 10.1021/cr940351u UR - https://pubmed.ncbi.nlm.nih.gov/11749514/ ID - 11749514 ER -