M Oppizzi

The edge-to-edge technique: a simplified method to correct mitral insufficiency.

O. Alfieri, L. Torracca, F. Maisano, 1998, European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery.

The double-orifice technique in mitral valve repair: a simple solution for complex problems.

O. Alfieri, L. Torracca, F. Maisano, 2001, The Journal of thoracic and cardiovascular surgery.