Photodynamic therapy in combination with surgery for the treatment of an extensive squamous cell carcinoma in situ: a case report - Salvio, Ana Gabriela; Stringasci, Mirian Denise; Vollet-Filho, José Dirceu; Requena, Michelle Barreto; Bagnato, Vanderlei Salvador (Photodiagnosis and Photodynamic Therapy, 2020)