- Correspondence to Dr Pradeep Sharma, Pediatric Ophthalmology and Strabismus, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India;
- Received July 8, 2012
- Revised July 3, 2013
- Accepted July 13, 2013
- First published July 31, 2013.
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