“Comparison of general vs spinal anesthesia for direct anterior approach total hip arthroplasty in elderly patients: A retrospective study”, Ann Med Res , vol. 30, no. 2, pp. 267–271, Feb. 2023, Accessed: Apr. 03, 2025. [Online]. Available: http://annalsmedres.org/index.php/aomr/article/view/4194