TY - RPRT TI - System functionality and physicochemical model of fentanyl transdermal system. AU - S K Gupta AU - M Southam AU - R Gale AU - S S Hwang PY - 1992 DO - 10.1016/0885-3924(92)90049-n UR - https://pubmed.ncbi.nlm.nih.gov/1517627/ ID - 1517627 ER -