About the Authors

Akshay Anand

Contributed equally to this work with: Akshay Anand, Neel Kamal Sharma

akshay1anand@rediffmail.com

Affiliation Department of Neurology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Neel Kamal Sharma

Contributed equally to this work with: Akshay Anand, Neel Kamal Sharma

Affiliation Department of Neurology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Amod Gupta

Affiliation Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Sudesh Prabhakar

Affiliation Department of Neurology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Suresh Kumar Sharma

Affiliation Department of Statistics, Panjab University, Chandigarh, India

Ramandeep Singh

Affiliation Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Pawan Kumar Gupta

Affiliation Department of Neurology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AA. Performed the experiments: NKS. Analyzed the data: AA NKS SKS PKG. Contributed reagents/materials/analysis tools: AA SP. Wrote the paper: AA NKS. Inclusion of patients and clinical scoring: AG RS.