P6483Predictors of contractile reserve on dobutamine stress echocardiography in patients with classical low-flow, low-gradient aortic stenosis von Emer Egypto Rosa, V, Ribeiro, H B, Samapio, R O, Morais, T C, Rosa, M E E, De Santis, A S A L, Fernandes, J R C, Spina, G S, Vieira, M L C, Pomerantzeff, P M A, Rochitte, C E, Mathias Jr, W, Tarasoutchi, F

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