AUTHOR=Addisu Zenaw Debasu , Demsie Desalegn Getnet , Tafere Chernet , Yazie Taklo Simeneh , Endeshaw Destaw , Tefera Bereket Bahiru , Berihun Malede , Beyene Dessale Abate TITLE=Time in the therapeutic range, bleeding event, and their determinants in older patients with atrial fibrillation on warfarin in Ethiopia: multicenter cross-sectional study JOURNAL=Frontiers in Pharmacology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1541592 DOI=10.3389/fphar.2025.1541592 ISSN=1663-9812