Udayashankar, Carounanidy, Charanya Sathyamoorthy, Dr. Bhuvaneswari, and Amiya Kumar Nath. 2017. “Purpura and Bleeding Due to Calcium Channel Blockers: A Preliminary Study”. Journal of Pakistan Association of Dermatologists 26 (4):322-27. https://doi.org/10.66344/jpad.26.4.2016.981.