Transesophageal Echocardiographic Characteristics of Secundum-Type Atrial-Septal Defect in Adult Patients - Sahebjam, Mohammad; Zavar, Reyhaneh; Lotfi-Tokaldany, Masoumeh; Lotfi-Tokaldany, Masoumeh; Sadeghian, Hakimeh; Zoroufian, Arezou (The Research in Heart Yield and Translational Medicine (RHYTHM))