High-Dose Direct Irradiation to a Cardiac Resynchronization Therapy Defibrillator Infiltrated by Metastatic Thyroid Papillary Carcinoma in the Sternum: A Case Report - Masaaki Goto, MD; Kayoko Ohnishi, MD, PhD; Masatoshi Nakamura, MD, PhD; Daisuke Kobayashi, PhD; Yukiko Tsushima, MD, PhD; Hiro Yamasaki, MD, PhD; Keiko Nemoto Murofushi, MD, PhD; Masashi Mizumoto, MD, PhD; Hitoshi Ishikawa, MD, PhD; Toshiyuki Okumura, MD, PhD; Hideyuki Sakurai, MD, PhD (Advances in Radiation Oncology)