1. Department of Otorhinolaryngology, Pandit Bhagwhat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India.
2. Department of Ophthalmology, Pandit Bhagwhat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India.
3. Department of Anaesthesiology, Pandit Bhagwhat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India.