%0 Journal Article %T Isolated and Combined Valve Surgery in Elderly Patients: A Comparison of Mid-Term Results %A Chiho Tokunaga %A Fumiya Yoneyama %A Hiroaki Sakamoto %A Kisato Mitomi %A Yoshiharu Enomoto %A Yuji Hiramatsu %J Archive of "Annals of Thoracic and Cardiovascular Surgery". %D 2017 %R 10.5761/atcs.oa.16-00303 %K elderly patients %K isolated valve surgery %K combined valve surgery %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5483858/