Letter by Kohsaka et al Regarding Article, "Safety of Switching From a Vitamin K Antagonist to a Non-Vitamin K Antagonist Oral Anticoagulant in Frail Older Patients With Atrial Fibrillation: Results of the FRAIL-AF Randomized Controlled Trial".
Shun KohsakaShiori NishimuraHiraku KumamaruPublished in: Circulation (2024)