RT Journal Article SR Electronic T1 Aortic valve replacement: Options, improvements, and costs JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 253 OP 254 DO 10.3949/ccjm.80a.13010 VO 80 IS 4 A1 Svensson, Lars G. YR 2013 UL http://www.ccjm.org/content/80/4/253.abstract AB