“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), pp. 171–177. doi:10.3126/kumj.v20i2.51174.