Effect of Aspirin on the International Normalized Ratio in Elderly Patients with Atrial Fibrillation on Concurrent Warfarin Therapy. Sarawak Journal of Pharmacy, [S. l.], v. 9, n. 1, p. 20–30, 2023. Disponível em: https://sjpharm.org/ojs/index.php/sjp/article/view/40. Acesso em: 22 mar. 2026.