Giovanni Speziali

Beating-heart, off-pump mitral valve repair by implantation of artificial chordae tendineae: an acute in vivo animal study.

R. Daly, W. Katz, K. Zehr, 2009, The Journal of thoracic and cardiovascular surgery.

Tension Measurement of Artificial Chordae Tendinae Implanted between the Anterior Mitral Valve Leaflet and the Left Ventricular Apex

Jun Liao, J. Liao, K. Zehr, 2008, Innovations.

The dynamic cardiac biosimulator: A method for training physicians in beating‐heart mitral valve repair procedures

Krzysztof Wrobel, S. van Tuijl, A. Leopaldi, 2018, The Journal of thoracic and cardiovascular surgery.