TY - JOUR AU - O'Brien, S M; Shahian, D M; Filardo, G TI - The Society of Thoracic Surgeons 2008 cardiac surgery risk models: part 2--isolated valve surgery JO - Ann Thorac Surg VL - 88 PY - 2009 DO - 10.1016/j.athoracsur.2009.05.056 L3 - PubMed-ID: 19559823 SP - S23 EP - S42 N1 - (1, Suppl): ER -