Gupta Pulkit, Malik Praveen K, Gupta Hira Lal
Department of Ophthalmology, Post Graduate Institute of Medical Education and Research, Dr. RML Hospital, New Delhi, India.
NIRVANA Eye Care and Aesthetics, New Delhi, India.
Oman J Ophthalmol. 2013 Sep;6(3):211. doi: 10.4103/0974-620X.122283.