Transversus abdominis plane block with liposomal bupivacaine versus standard bupivacaine for postoperative analgesia in elective cesarean section: a systematic review and meta-analysis. - Requena Escobar, Matheus; Amaral, Sara; Oku, Letícia; Felippe, Vitor; Bersot, Carlos Darcy; Erdmann, Thomas Rolf (Frontiers in Anesthesiology, 2026)