Sadeghian H, Hajizeinali A, Eslami B, Lotfi-Tokaldany M, Sheikhfathollahi M, Sahebjam M, Hakki E, Zoroufian A, Kassaian SE, Alidoosti M. Measurement of Atrial Septal Defect Size: a Comparative Study Between Transesophageal Echocardiography and Balloon Occlusive Diameter Method. J Tehran Heart Cent. 1;5(4):212-212.