Schroeder, E., Marchandise, B., Schoevaerdts, J.-C., & Kremer, R. (1985). Paradoxical Ventricular Septal Motion After Cardiac-surgery - Analysis of M-mode Echocardiograms and Follow-up in 324 Patients. Acta Cardiologica : an international journal of cardiology, 40(3), 315-324. https://hdl.handle.net/2078.5/68343 (Original work published 1985)