F. Charles Brunicardi, MDDeBakey/Bard Professor and ChairmanMichael E. DeBakey, Department of SurgeryBaylor College of MedicineHouston, Texas Timothy R. Billiar, MDGeorge Vance FosterProfessor and Chairman of SurgeryDepartment of SurgeryUniversity of Pittsburgh School of MedicinePittsburgh, Pennsylvania David L. Dunn, MD, PhDJay Phillips Professor and ChairmanDepartment of SurgeryUniversity of Minnesota Medical SchoolMinneapolis, Minnesota John G. Hunter, MDProfessor and ChairmanDepartment of SurgeryOregon Health and Science University Portland, Oregon McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwide Raphael E. Pollock, MD, PhDHead, Division of SurgeryProfessor and ChairmanDepartment of Surgical OncologySenator A.M. Aiken, Jr. Distinguished ChairThe University of Texas M. D. Anderson Cancer CenterHouston, Texas