Sabyasachi Bandyopadhyay, Kumar Ghanta A, Kumar Purkait S, Lila Bandyopadhyay
Department of Ophthalmology, R. G. Kar Medical College and Hospital, 1, Khudiram Bose Sarani, Kolkata, India.
Oman J Ophthalmol. 2012 May;5(2):121-3. doi: 10.4103/0974-620X.99379.