A. Uddin, G. Faruque, and A. Sharif, “A comparison of the efficacy of Olopatadine hydrochloride 0.1% ophthalmic solution and Sodium Chromoglycate ophthalmic solution in the treatment of allergic conjunctivitis”, J Dhaka Med Coll, vol. 18, no. 2, pp. 136–139, Oct. 2010.