Amelioration of right ventricular function after hybrid therapy with riociguat and balloon pulmonary angioplasty in patients with chronic thromboembolic pulmonary hypertension. (15th October 2016) - Tsugu, Toshimitsu; Murata, Mitsushige; Kawakami, Takashi; Kataoka, Masaharu; Nagatomo, Yuji; Tsuruta, Hikaru; Itabashi, Yuji; Maekawa, Yuichiro; Fukuda, Keiichi