Lymph Node Size in Rectal Cancer Following Neoadjuvant Chemoradiation-Can We Rely on Radiologic Nodal Staging After Chemoradiation? - Perez, Rodrigo O.; Pereira, Diego D.; Proscurshim, Igor; Gama-Rodrigues, Joaquim; Rawet, Viviane; São Julião, Guilherme P.; Kiss, Desiderio; Cecconello, Ivan; Habr-Gama, Angelita (Diseases of the Colon & Rectum, 2009)