TY - RPRT TI - Controlled release of polypeptides from polyanhydrides. AU - E Ron AU - T Turek AU - E Mathiowitz AU - M Chasin AU - M Hageman AU - R Langer PY - 1993 DO - 10.1073/pnas.90.9.4176 UR - https://pubmed.ncbi.nlm.nih.gov/8483931/ ID - 8483931 ER -