Sharif, AQMO, et al. “Ice Pack Test - An Alternate to Prostigmin Test in the Diagnosis of Myasthenia Gravis With Ocular Involvement: A Simple, Noninvassive and Safe Method”. Journal of Dhaka Medical College, vol. 18, no. 2, Oct. 2010, pp. 112-4, doi:10.3329/jdmc.v18i2.6268.