Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Mike Saji and Morimasa Takayama and Jun Shimizu,Transcatheter aortic valve replacement requiring staged percutaneous coronary intervention in Japanese patients with severely calcified ascending aorta : a case report and institution series analysis,Cardiovascular intervention and therapeutics,18684300,Tokyo : Springer Japan,2013-07,28,3,295-299,https://cir.nii.ac.jp/crid/1523951028265764736,