Zahid, Mahnoor, Abeera Zareen, Tehreem Zahid, Waqas Anjum, Kainat Altaf, and Hamna Sarwar. “Diagnostic Accuracy of Internal Jugular Vein Collapsibility Index For The Diagnosis of Hypovolemia In Intensive Care Unit Patients”. Journal of Rawalpindi Medical College 30, no. 2 (June 30, 2026). Accessed July 2, 2026. https://www.journalrmc.com/index.php/JRMC/article/view/3146.