German, C. and Nanda, N.C. 2015. Incremental Value of Three-Dimensional Echocardiography over Two-Dimensional Echocardiography in the Assessment of Atrial Septal Defects. Cardiovascular Journal. 7, 2 (Feb. 2015), 67–71. DOI:https://doi.org/10.3329/cardio.v7i2.22243.