00280nam a22001097a 4500008004100000020001800041041000800059080000800067100000700075101000800082245008000090260312b           ||||| |||| 00| 0 eng d  a9781899066520  aeng  a2.1  a02  amek  aSurgery for Asquired Aortic Valve DiseasecArmand Piwnica , Stephen Westaby