Rodrigues, Vânia, Tiago Gomes, Adriana Santos Silva, Rita Rocha, and Ana Ferrão. “Platypnoea-Orthodeoxia Syndrome: An Intriguing Diagnosis”. European Journal of Case Reports in Internal Medicine 6, no. 2 (February 22, 2019). Accessed November 3, 2026. https://ejcrim.com/index.php/ejcrim/article/view/1030.