Comparison of intrathecal isobaric ropivacaine with fentanyl and isobaric bupivacaine with fentanyl for spinal anesthesia for lower abdominal and lower limb surgery - Saran, Anita; Raipure, Amrusha; Chauhan, Ravindra Singh; Bohra, Sukesh; Bhargava, Sudip (Anaesthesia, Pain & Intensive Care, 2019)