1. Department of Ophthalmology, Government Medical College and Hospital, Chandigarh, India
2. Truhlsen Eye Institute, University of Nebraska Medical Centre, Omaha, NE, USA
3. Advanced Eye Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
4. Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, Tamil Nadu, India