High late complication and local control with Hypofractionated radiosurgery boost in advanced head and neck cancer : Is it feasible and safe ?

Kim, Yeon-Sil (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea) ;
Son, Seok-Hyun (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea) ;
Lee, Sang-Nam (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea) ;
Jang, Ji-Sun (Cyberknife Center, Seoul St. Mary's hospital) ;
Choi, Byung-Ock (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea) ;
Jang, Hong-Seok (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea) ;
Yoon, Sei-Chul (Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea)