Pulmonary changes and redox status after fractionalized dose of prophylactic surfactant treatment in preterm neonatal lambs - Silva, Liege Cristina Garcia da; Angrimani, Daniel Souza Ramos; Regazzi, Fernanda Machado; Lúcio, Cristina Fátima; Veiga, Gisele Almeida Lima da; Fernandes, Claudia Barbosa; Vannucchi, Camila Infantosi (Journal of Applied Animal Research, 2020)