Photodynamic therapy for the treatment of widespread actinic keratosis using a new light source - Salvio, Ana Gabriela; Bonilha, Valentina Sofner; Oliveira, Elisangela Ramos de; Inada, Natalia Mayumi; Kurachi, Cristina; Bagnato, Vanderlei Salvador (World Congress of the International Photodynamic Association - IPA, 2013)