Aidy, A. M. E.; Attia, A. A.; Ramzy, E. A.; Ghaffar, N. A. A. Blockade of Thoracoabdominal Nerves through Perichondrial Approach (TAPA) Versus Transversus Abdominis Plane Block (TAP) for Postoperative Analgesia in Pediatric Abdominal Surgeries: A Randomized Controlled Trial. Int. J. of Health Sci. 2022, 6, 869-881.