Devaram, V.; Arumulla, S. P.; Midathala, J.; Reddy, B.; Mallela, S.; Chaitanya, K.; Prasad, H. Efficacy of Ultrasound Guided Thoracic Paravertebral Block for Postoperative Analgesia in Patients Undergoing Percutaneous Nephrolithotomy Surgeries. PMJUA 2023, 7.