Silveira, Valentina, et al. “Prophylactic Oropharyngeal Surfactant Administration before Cord Clamping in Very Low Birth Weight Newborns”. Archives of Clinical and Biomedical Research, vol. 6, no. 5, Oct. 2022, pp. 906-11, https://fortunejournals.org/ojs/index.php/acbr/article/view/14971.