Jonnavithula Nirmala, Bonagiri Shanthi, Ramachandran Gopinath, Mishra Rc
Department of Anesthesiology and Intensive Care, Nizam's Institute of Medical Sciences, Hyderabad, Andhra Pradesh, India.
Indian J Anaesth. 2013 Jan;57(1):78-9. doi: 10.4103/0019-5049.108577.