Stuck with a decision: what is the "true" aortic valve area--anatomic, geometric, or effective orifice area?
Mahmood, Feroze, and Madhav Swaminathan. 2010. “Stuck With a Decision: What Is the ‘true’ Aortic Valve Area--Anatomic, Geometric, or Effective Orifice Area?”. J Cardiothorac Vasc Anesth 24 (4): 714-5.