Schroeder, E., Marchandise, B., Schoevaerdts, J.-C., & Kremer, R. (1983). Left Atrial-myxoma Causing Fluttering of the Anterior Mitral Leaflet. Acta Cardiologica : an international journal of cardiology, 38(6), 537-543. https://hdl.handle.net/2078.5/44527 (Original work published 1983)