1.
Esmaeilzadeh M, Mirdamadi A, Parsaee M, Sadeghpour A, Maleki M, Bakhshandeh Abkenar H. Is the Peak-to-Mean Pressure Gradient Ratio Useful for Assessment of Aortic Valve Prosthesis Obstruction?. J Tehran Heart Cent. 1;5(2):69-73.