Aortic Regurgitation
  MLA
  Vojacek, Jan Dominik, and Pavel Zacek. Aortic Regurgitation. Springer International Publishing, 2018.
  APA
  Vojacek, V., Dominik, J., & Zacek, P. (2018). Aortic Regurgitation. Springer International Publishing.
  Chicago
  Vojacek, Jan Dominik, and Pavel Zacek. Aortic Regurgitation. : Springer International Publishing, 2018.