Enhanced delivery of 5-aminolevulinic acid esters by lontophoresis in vitro - Lopez, Renata Fonseca Vianna; Bentley, Maria Vitória Lopes Badra; Delgado-Charro, M. Begoña; Salomon, Denis; Van den Bergh, Hubert; Lange, Norbert; Guy, Richard H. (Photochemistry and Photobiology, 2003)