Table 1.  Patients characteristic.

Case no.		Subsite	TNM	Age (yr)	Gender
1	T	Oropharynx	T4aN0M0	53	M
2	T	Oropharynx	T4aN2cM0	62	M
3	T	Hypopharynx	T3N2bM0	83	M
4	T	Hypopharynx	T4aN2cM0	62	F
5	T	Oropharynx	T4aN1M0	62	M
6	T	Oropharynx	T4aN2cM0	54	M
7	T	Hypopharynx	T4aN2cM0	63	M
8	T	Oropharynx	T3N2cM0	73	M
9	P	Hypopharynx	T4aN2cM0	58	M
10	P	Oropharynx	T4aN2cM0	64	M
11	P	Larynx	T2N0M0	72	M
12	P	Hypopharynx	T4aN2cM0	52	M
13	P	Hypopharynx	T2N2cM0	49	M
14	P	Maxillary sinus	T3N0M0	65	F
15	P	Maxillary sinus	T4aN0M0	79	M
16	P	Oropharynx	T3N3M0	67	M

TNM staging system is defined by Union for International Cancer Control classification system. F, female; M, male; P, placebo;T, TJ-14; yr, years.