G. Kaya

Anterior mitral leaflet prolapse as a primary cause of pure rheumatic mitral insufficiency.

A. Kalangos, D. Vala, B. Faidutti, 2000, The Annals of thoracic surgery.

Pancreatic Surgery in the Very Old: Face to Face With a Challenge of the Near Future

W. Uhl, A. Chromik, O. Belyaev, 2013, World Journal of Surgery.