Eugene A Grossi, Peter K Zakow, Martin Sussman, Aubrey C Galloway, Julie Delianides, Gregory Baumann, Stephen B Colvin,
Late results of mitral valve reconstruction in the elderly The Annals of Thoracic Surgery. ,vol. 70, pp. 1224- 1226 ,(2000) ,
10.1016/S0003-4975(00)01661-1