Mathew, A., Lukachan, G., Varughese, D., Raju, N., Mathai, A. and Johnson, A. 2023. Impact of frailty and comorbidity index on postoperative complications and functional outcomes among elderly patients undergoing hip fracture surgeries under regional anesthesia techniques. Anaesthesia, Pain & Intensive Care. 27, 2 (Apr. 2023), 161-169. DOI:https://doi.org/10.35975/apic.v27i2.2132.