Evaluation of pain and treatment effect during large area photodynamic therapy in 140 patients with widespread actinic keratosis of upper limbs - Salvio, Ana Gabriela; Ramirez, Dora Patricia; Nogueira, Marcelo Saito; Stringasci, Mirian Denise; Oliveira, Elisangela R.; Inada, Natalia Mayumi; Bagnato, Vanderlei Salvador (International Photodynamic Therapy World Congress, 2017)