Basavarajaiah S, Patel P, Sharma K. A Comparative Study of Dexmedetomidine and Tramadol as an Adjuvant to Levobupivacaine in Ultrasound Guided Transverse Abdominus Plane Block in Pediatric Patients Undergoing Laproscopic Orchidopexy. Arch Anesth & Crit Care. 2022;8(4):270-273.