1. Department of Radiology, Tabriz University of Medical Sciences, Imam Reza Hospital, Tabriz, Iran
2. Medical Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
3. Department of Cardiac Surgery, Tabriz University of Medical Sciences, Madani Hospital, Tabriz, Iran
4. Department of Pathology, Tabriz University of Medical Sciences, Imam Reza Hospital, Tabriz, Iran
5. Department of Radiology, St Elizabeth Hospital Medical Center, Youngstown, Ohio.