1. Department of Anaesthesiology and Critical Care, MH Secunderabad, Telangana, India
2. Department of Pulmonary Medicine, AICTS, Pune, Maharashtra, India
3. Department of Anaesthesiology and Critical Care, Command Hospital Chandimandir, Panchkula, Haryana, India
4. Department of ENT, Command Hospital (AF), Bangaluru, Karnataka, India