Ultrasound-guided Quadratus Lumborum Block for Postoperative Analgesia in Patients Undergoing Nephrectomy: A Systematic Review and Meta-analysis. - Shrivastava, Priyanka; Sharma, Ridhima; Saran, Khushboo; Prakash, Jay; Kumar, Amit; Shrivastava, Khushboo; Kharwar, Ramesh Kumar; Singh, Dipali; Verma, Saket (Annals of African Medicine, 2026)