Vanden Eynde, N., V. Demeulemeester, E. Dierckx, and K. Plaskie. “Cystic Fibrosis and Trisomy 21, Two Co-Existing Genetic Syndromes in a Newborn: A Case Report and a Review of the Literature”. Belgian Journal of Paediatrics, vol. 23, no. 1, Apr. 2021, https://www.belgjpaediatrics.com/index.php/bjp/article/view/175.