AAL, M. K. A.; NASSAR, M. B.; ELGENDY, E.; BADR, S. F. Evaluation of Time in Therapeutic Range of Patients with Non-Valvular Atrial Fibrillation on Oral Anticoagulation with Vitamin K Antagonist in Delta Region. Cardiology and Angiology: An International Journal, v. 10, n. 3, p. 32-38, 26 jun. 2021.