Sharma, G., Chaudhary, K.P. and Sawaraj, S. 2021. A comparative study of azelastine, cromolyn and olopatadine ophthalmic solution in vernal keratoconjunctivitis in a tertiary care hospital-open label parallel group study design. International Journal of Basic & Clinical Pharmacology. 10, 7 (Jun. 2021), 785–788. DOI:https://doi.org/10.18203/2319-2003.ijbcp20212373.