Meda Venkata Subbaiah, Giridhar T, and Gowtham P. “Surveillance of Adverse Events in Surgical Department: An Observational Study”. International Journal of Research in Pharmaceutical Sciences 6, no. 4 (October 18, 2015): 358-364. Accessed April 21, 2021. https://pharmascope.org/ijrps/article/view/1263.