Phase II clinical trial assessing the addition of hyperthermia to salvage concurrent chemoradiotherapy for unresectable recurrent head and neck cancer in previously irradiated patients - Kai-Lin Yang; Mau-Shin Chi; Chung-Yu Hao; Hui-Ling Ko; Yi-Ying Huang; Ren-Hong Wu; Hung-Chih Lai; Ying-Chu Lin; Sheng-Po Hao; Kwan-Hwa Chi (Radiation Oncology, 2025)