PO-068: Soft tissue necrosis in head and neck cancer patients treated with radiation therapy after transoral robotic surgery. (February 2015) - Lee, Y.H.; Kim, Y.S.; Jang, H.S.; Choi, B.O.; Chang, J.H.; Kim, M.S.; Sun, D.I.; Kang, J.H.; Hong, S.H.; Jung, S.L.