Photodynamic therapy of feline squamous cell carcinoma with methyl 5-aminolevulinate - Emilio, Claudia Rodrigues; Bechara, Etelvino José Henriques; Dagli, Maria Lúcia Zaidan; Dutra, Fernando; Gioso, Marco Antonio; Pinotti, Marcos; Zezell, Denise Maria (Free Radicals in Montevideo 2007, 2007)