RT Journal Article SR Electronic T1 In people with severe aortic stenosis unsuitable for surgery transcatheter aortic valve implantation reduces 1-year mortality compared with standard care JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 74 OP 75 DO 10.1136/ebm1175 VO 16 IS 3 A1 Ronak Rajani YR 2011 UL http://ebm.bmj.com/content/16/3/74.abstract AB