“Ultrasonographic Evaluation of Inferior Vena Cava: Aorta Index With a Cut-off Value of 1.0 As a Predictor for Hypotension After Induction of General Anesthesia; An Observational Study”. 2022. Kathmandu University Medical Journal 20 (2): 171-77. https://doi.org/10.3126/kumj.v20i2.51174.