R Patel, S., H. D Makwana, K. P Patel, S. D Malhotra, and P. R Patel. “Digoxin Toxicity Presented With Right Bundle Branch Block: A Case Report of Drug- Drug Interaction”. International Journal of Medical Research and Review, Vol. 5, no. 10, Oct. 2017, pp. 921-4, doi:10.17511/ijmrr.2017.i10.08.