Reduced fractional shortening of right ventricular outflow tract is associated with adverse outcomes in patients with left ventricular dysfunction - Yamaguchi, M; Tsuruda, T; Watanabe, Y; Onitsuka, H; Furukawa, K; Ideguchi, T; Kawagoe, J; Ishikawa, T; Kato, J; Takenaga, M; Kitamura, K (Cardiovasc Ultrasound, 2013)