Comparative study between ultrasound guided erector spinae block versus thoracic paravertebral block versus quadratus lamborum block for postoperative analgesia after open renal surgeries: a prospective randomized controlled study. Arch Ital Urol Androl [Internet]. 2026 Jul. 31 [cited 2026 Aug. 18];. Available from: https://www.pagepressjournals.org/aiua/article/view/15675