Anticoagulation quality with warfarin therapy, and associated factors among adult outpatients at public hospitals in nekemte town, western Ethiopia: a retrospective study - Teka, Firafan Shuma; Korsa, Ayana Tadesse; Gebeyehu Bayisa, Habte; Befikadu W/Senbat, Dechasa; Shifera Beyene, Refisa; Dugassa Iticha, Dinka; Sefera Senbeta, Birbirsa (Frontiers in Pharmacology, 2025)