A Comparative Study of Intrathecal Neostigmine and Dexmedetomidine as Adjuvant to Bupivacaine Spinal Analgesia in Sub Umbilical Regional Surgeries - Bhaskar, Hegde Uthkala; Kankanala, Sumanth; Reddy, G Nischala (Academia Anesthesiologica International, 2019)