Khan, Razi. “Patent Foramen Ovale Closure and Medical Therapy for Cryptogenic Stroke: Evidence from Randomized Controlled Trials and Beyond”. Cardiology and Cardiovascular Medicine 4, no. 3 (May 29, 2020): 203–217. Accessed June 21, 2026. http://www.fortunejournals.org/ojs/index.php/ccm/article/view/15836.