J. P. Abreu Fernandes, J. . Santos Faria, A. Fernandes, A. R. Ramalho, A. Girão, and M. Petrova, “Severe Pneumonia Caused by SARS-CoV-2: A Novel Cause of Platypnoea-Orthodeoxia Syndrome”, EJCRIM, vol. 9, no. 8, Aug. 2022.