論文（英文）
Decreased serum brain-derived neurotrophic factor levels are correlated with exercise intolerance in patients with heart failure
Fukushima A, Kinugawa S, Homma T, Masaki Y, Furihata T, Yokota T, Matsushima S, Abe T, Suga T, Takada S, Kadoguchi T, Katsuyama R, Oba K, Okita K, Tsutsui H. Decreased serum brain-derived neurotrophic factor levels are correlated with exercise intolerance in patients with heart failure. Int J Cardiol 2013;168:e142-4.