Sharma, Munish, and Koroush Khalighi. “Non-Pharmacologic Approach to Prevent Embolization in Patients With Atrial Fibrillation in Whom Anticoagulation Is Contraindicated”. Clinics and Practice 7, no. 1 (January 18, 2017). Accessed November 14, 2019. https://www.clinicsandpractice.org/index.php/cp/article/view/898.