Cai, Z., R. Xie, T. Xu, and C. Huang. “Comparison of Ultrasound-Guided Serratus Anterior Plane Block and Thoracic Paravertebral Block in Postoperative Analgesia and Inflammation Control in Patients Undergoing Upper Abdominal Surgery”. Pakistan Journal of Medical Sciences, Vol. 39, no. 1, Dec. 2022, doi:10.12669/pjms.39.1.6849.