Pramitaningastuti, A., Benny Setiawan and Chelseata Ria Rebeka Br Sitepu 2025. Variation in Time in Therapeutic Range (TTR) of Warfarin Use in Atrial Fibrillation Patients at Hospital X, Banten. Media Farmasi Indonesia. 20, 2 (Oct. 2025), 186 - 199. DOI:https://doi.org/10.53359/mfi.v20i2.345.