Khalaf, . K. S.; Haji, .Ghazi F.; Mahmood, . G. M.; Naser, N. Detection of Thrombi in Left Atrial Chamber by Transoesophageal Ecchocardiography in Patients Suffer from Non-Rheumatic Atrial Fibrillation. Al-Kindy Col. Med. J 2016, 12 (1), 87-94.