Esther Eljarrat-Binstock, Bentolila, Alfonso , Kumar, Neeraj , Harel, Hannah , and Domb, Abraham J. 2007. “Preparation, Characterization, And Sterilization Of Hydrogel Sponges For Iontophoretic Drug-Delivery Use”. Polymers For Advanced Technologies, 18, 9, Pp. 720–730.