Basavana Gouda Goudra1, Preet Mohinder Singh2. 1. Department of Anesthesiology and Critical Care, University of Pennsylvania Perelman School of Medicine/Hospital of the University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: goudrab@uphs.upenn.edu. 2. Department of Anesthesia Post Graduate Institute of Medical Education and Research (PGIMER) Chandigarh 160012, India. Electronic address: preetrajpal@gmail.com.