Ultrasound-Guided Subtransverse Interligamentary Block Versus Thoracic Paravertebral Block for Postoperative Analgesia in Patients Undergoing Open Nephrectomy — Stella
Ultrasound-Guided Subtransverse Interligamentary Block Versus Thoracic Paravertebral Block for Postoperative Analgesia in Patients Undergoing Open Nephrectomy
Not a traditional drug trial — this study doesn't follow the standard phase structure.