1 From the Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
2 Department of Anaesthesia and Intensive Care, ACC (Advanced Cardiac Centre), Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
3 Department of Cardiothoracic and Vascular Surgery, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.