![Volume–outcome relationship in transcatheter aortic valve implantations in Germany 2008–2014: a secondary data analysis of electronic health records]()
Volume–outcome relationship in transcatheter aortic valve implantations in Germany 2008–2014: a secondary data analysis of electronic health recordsKaier, Klaus; Oettinger, Vera; Reinecke, Holger; Schmoor, Claudia; Frankenstein, Lutz; Vach, Werner; Hehn, Philip; von zur Mühlen, Constantin; Bode, Christoph; Zehender, Manfred; Reinöhl, Jochen · BMJ Open · 2018