Tortum, F., and A. Gur. “Investigation of the Relationship Between the PaO₂/FiO₂ Ratio and Wells Score in Patients Diagnosed With Acute Pulmonary Embolism”. Annals of Medical Research, vol. 30, no. 2, Feb. 2023, pp. 226-30, https://annalsmedres.org/index.php/aomr/article/view/4201.