Chandra, Deepak, Yogita Rochlani, Deepa Jayakrishnan, and Bijay Nair. “Confusion and Lightheadedness Related to Calcium Channel Blocker Toxicity”. Kerala Medical Journal 13, no. 1 (March 23, 2020): 21-22. Accessed May 4, 2024. https://www.keralamedicaljournal.com/index.php/KMJ/article/view/586.