1. Acid-sensitive polyethylene glycol conjugates of doxorubicin: preparation, in vitro efficacy and intracellular distribution Author Rodrigues, Paula C.A., primary, Beyer, Ulrich, additional, Schumacher, Peter, additional, Roth, Thomas, additional, Fiebig, Heinz H., additional, Unger, Clemens, additional, Messori, Luigi, additional, Orioli, PierLuigi, additional, Paper, Dietrich H., additional, Mülhaupt, Rolf, additional, and Kratz, Felix, additional Published 1999 Full Text View/download PDF