Mukhopadhyay, S., J. Dutta, R. Raut, H. Datta, and A. K. Bhattacharyay. “Expression of Oxidative Stress in Metastatic Retinoblastomaa Comparative Study”. Nepalese Journal of Ophthalmology, vol. 4, no. 2, July 2012, pp. 271-6, doi:10.3126/nepjoph.v4i2.6543.