Retinal nerve fiber layer thinning found in amyotrophic lateral sclerosis – Correlation with disease duration and severity oleh Bijendra Mohanty, Amar Kumar Misra, Sanjay Kumar, Gautam Guha, Annesh Bhattacharya, Pideno S Ngullie, Akash Manna, Tapashya Nanda, Joydeep Mukherjee