[Multivariate analysis of risk factors associated with dehiscence of colorectal anastomosis after anterior or lower anterior resection for sigmoid or rectal cancer]. - Luna-Pérez P; Rodríguez-Ramírez SE; Gutiérrez de la Barrera M; Labastida S (Revista de investigacion clinica; organo del Hospital de Enfermedades de la Nutricion, 2002)