A. Azevedo, F. Flor-de-Lima, G. Rocha, C. Rodrigues, and H. Guimarães, “Impact of changes in perinatal care on bronchopulmonary dysplasia: an overview of the last two decades”, J Pediatr Neonat Individual Med, vol. 6, no. 2, p. e060208, Jul. 2017.