TY - RPRT TI - Progestin permeation through polymer membrane V: Progesterone release from monolithic hydrogel devices. AU - S Z Song AU - J R Cardinal AU - S H Kim AU - S W Kim PY - 1981 DO - 10.1002/jps.2600700226 UR - https://pubmed.ncbi.nlm.nih.gov/7205230/ ID - 7205230 ER -