Overuse of Anticoagulation in Treatment of Atrial Fibrillation Patients in University Hospitals of Tehran - Yasinzadeh, Mohammadreza; Pour Shafiee, Seyed Hashem; Chardoli, Mojtaba; Ghafouri, Hamed-Basir; Jazayeri, Seyed Behzad; Rahimi-Movaghar, Vafa (Iranian Journal of Public Health)