Comparison of sedative effi cacy of epidural bupivacaine 0.5% with lignocaine 2% plus adrenaline by measuring BIS guided propofol requirement in gynaecological surgery - Yadav, Ghanshyam; Pradhan, Chandra Sekhar; Gupta, Surendra Kumar; Jain, Gaurav; Khuba, Sandeep; Singh, Dinesh Kumar (Anaesthesia, Pain & Intensive Care, 2019)