Dighe, S. K., A. B. Nashikkar, and M. Purnanand. “Protective Role of Verapamil Against Organophosphorus Ester Induced Delayed Neurotoxicity (Short Communication)”. Defence Science Journal, vol. 47, no. 2, Jan. 2013, pp. 173-6, doi:10.14429/dsj.47.3992.