The dogma of cetuximab in advanced squamous cell carcinoma of the head and neck after failure of surgery and radiotherapy: is it true among patients in upper Egypt?

手术和放疗失败后，西妥昔单抗在头颈部晚期鳞状细胞癌治疗中的应用是否符合埃及上埃及患者的实际情况？