Schoevaerdts, J.-C., El Gariani, A., Buche, M., Lichtsteiner, M., Jaumin, P., Ponlot, R., & Chalant, C. (1987). 20 Years Experience With the Model 6120 Starr-edwards Valve in the Mitral Position. The Journal of Thoracic and Cardiovascular Surgery, 94(3), 375-382. https://hdl.handle.net/2078.5/45356 (Original work published 1987)