APA (7th ed.) Citation

Kaier, K., & Frankenstein, L. (2017). Learning curves among all patients undergoing transcatheter aortic valve implantation in Germany: A retrospective observational study. International journal of cardiology, 235, .

Chicago Style (17th ed.) Citation

Kaier, Klaus, and Lutz Frankenstein. "Learning Curves Among All Patients Undergoing Transcatheter Aortic Valve Implantation in Germany: A Retrospective Observational Study." International Journal of Cardiology 235 (2017).

MLA (9th ed.) Citation

Kaier, Klaus, and Lutz Frankenstein. "Learning Curves Among All Patients Undergoing Transcatheter Aortic Valve Implantation in Germany: A Retrospective Observational Study." International Journal of Cardiology, vol. 235, 2017.