A Marked Response to Immunosuppressive Intervention for Abruptly Occurring Cardiac Complications in a Case of Juvenile Systemic Sclerosis Overlapped with Dermatomyositis oleh Tsunehisa Nagamori, Yoichiro Yoshida, Hironori Takahashi, Hideharu Oka, Aya Kajihama, Koichi Nakau, Masaya Sugimoto, Masako Minami-Hori, Hiroshi Azuma