Long-Term Increase of Intrathoracic Impedance after Cardiac Resynchronization Therapy Is Associated with Left Ventricular Reverse Remodeling - Kamioka, Masashi; Suzuki, Hitoshi; Yamada, Shinya; Kamiyama, Yoshiyuki; Saitoh, Shu-ichi; Takeishi, Yasuchika (Journal of arrhythmia, 2011)