Haemodynamic Effects and Complications of Unilateral Spinal versus Standard Spinal Anesthesia in Elderly with Low Ejection Fraction Undergone Lower-Limb Surgery. Delta Medical College Journal, [S. l.], v. 5, n. 1, p. 20–24, 2017. DOI: 10.3329/dmcj.v5i1.31426. Disponível em: https://banglajol.info/index.php/DMCJ/article/view/31426. Acesso em: 29 jun. 2026.