Affiliation: | A. Kumar, MD, DA, MAMS, Reader, S. Dam, MD, Senior Resident, A. Bhattacharya, MD, DA, DAcp, Professor and Head, K. K. Tyagi, MB, BS, Department of Anaesthesiology and Critical Care, O. P. Tandon, MD, FIC, MNAMS, Professor and Head, Department of Physiology, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi—110 095, India. |