Gupta Shikha, Sehra Srivatsa, Gogia Varun, Khokhar Sudarshan, Agarwal Tushar
Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Can J Ophthalmol. 2013 Oct;48(5):e125-8. doi: 10.1016/j.jcjo.2013.04.014.