Bcl-2 protein frequency in patients with high-risk diffuse large B-cell lymphoma - Hallack Neto, Abrahão Elias; Siqueira, Sheila Aparecida Coelho; Dulley, Frederico Luiz; Chamone, Dalton Alencar Fischer; Chauobah, Alfredo; Belesso, Marcelo; Saboia, Rosaura; Ruiz, Milton Artur; Pereira, Juliana (São Paulo Medical Journal, 2010)