Table 1. Patients' characteristics.

Sex	Age (years)	Subsite	TN stage	Histology	Concurrent CT
F	41	Oral cavity	T4N0M0	SCC	Yes
M	46	Tonsil	T4N2cM0	SCC	Yes
F	54	Oral cavity	T4N2M0	SCC	Yes
F	60	Oral cavity	T2N0M0	SCC	Yes
M	63	Hypopharynx	T3N0M0	SCC	Yes
M	48	Tonsil	T2N0M0	SCC	Yes
M	77	Oropharynx	T3N1M0	SCC	No
M	77	Oral cavity	T4N1M0	SCC	No
M	48	Tonsil	T2N1M0	SCC	Yes
M	54	Oral cavity	T3N0M0	SCC	Yes

F, female; M, male; SCC, squamous cell carcinoma.