Ullah, M., Kar, N., Karmaker, P., Alam, S., Mamun, M., Rahman, T., Habib, S., & Majumder, A. (2011). Prevention of Stroke in Nonvalvular Atrial Fibrillation. Cardiovascular Journal, 1(1), 64–71. https://doi.org/10.3329/cardio.v1i1.8217