Shajahan, J., A. A. Parathoduvil, and S. Purushothaman. “An Analysis of Seriousness, Predictability and Preventability of Adverse Drug Reactions Reported at a Tertiary Care Teaching Hospital in Kerala, India: A Retrospective Observational Record Based Study”. International Journal of Basic & Clinical Pharmacology, vol. 7, no. 12, Nov. 2018, pp. 2433-8, doi:10.18203/2319-2003.ijbcp20184861.