Evaluation of histological changes after tracheal occlusion at different gestational ages in a fetal rat model - Gallindo, Rodrigo Melo; Gonçalves, Frances Lilian Lanhellas; Barreto, Carolina Teixeira de Resende; Schmidt, Augusto Frederico Santos; Pereira, Luis Antonio Violin Dias; Sbragia, Lourenço (Clinics, 2013)