TY - RPRT TI - Zero-order controlled-release polymer matrices for micro- and macromolecules. AU - D S Hsieh AU - W D Rhine AU - R Langer PY - 1983 DO - 10.1002/jps.2600720105 UR - https://pubmed.ncbi.nlm.nih.gov/6827458/ ID - 6827458 ER -