Bhakta, Maharshi, and Rudruidee Karnchanasorn. “Unusual Cause of Hypocalcemia: Regorafenib-Induced Hypocalcemia”. Kansas Journal of Medicine, vol. 7, no. 3, Aug. 2014, pp. 107-8, https://doi.org/10.17161/kjm.v7i3.11495.