TAMAN, H.; SABER, H. I.; FARID, A.; ELAWADY, M. Bilateral erector spinae plane block vs quadratus lumborum block for pediatric postoperative pain management after laparoscopic abdominal surgery: a double blinded randomized study. Anaesthesia, Pain & Intensive Care, v. 26, n. 5, p. 602-607, 18 out. 2022.