Effects of an individually ventilated cage system on the airway integrity of rats (Rattus norvegicus) in a laboratory in Brazil - Teixeira, M. A; Chaguri, Luziane do Carmo Andrade Guinski; Carissimi, A. S; Souza, Nívea Lopes de; Mori, Claudia Madalena Cabrera; Saldiva, Paulo Hilário Nascimento; Lemos, Miriam; Macchione, Mariangela; Guimarães, E. T; King, M; Merusse, José Luiz Bernardino (Laboratory Animals, 2006)