Manisha Shetty, Dhanwin R Shetty, Nidhi Raj, and Monika Nukala. “Role of Lung Perfusion Analysis With Dual Energy CT in Patients With Suspected Pulmonary Embolism: Perfusion Defects Are Correlated With Pulmonary Ct Angiogram and Clinical Parameters”. International Journal of Health and Clinical Research, vol. 4, no. 16, Sept. 2021, pp. 285-94, https://www.ijhcr.com/index.php/ijhcr/article/view/2668.