Wolfer, A., et al. “Acute Respiratory Failure in Children: Epidemiological Data from the Italian Network of Pediatric Intensive Care Units”. Acta Biomedica Atenei Parmensis, vol. 83, no. 1, July 2012, pp. 43-47, https://mattioli1885journals.com/index.php/actabiomedica/article/view/2363.