Table 1.

Head and neck cancer patient distribution according to their staging and if prior irradiation was applied

Stage	all	I	II	III	IVA	IVB	IVC
Total	97	2	9	5	59	5	17
Prior radiotherapy	35	1	1	2	17	3	11
No radiotherapy	62	1	8	3	42	2	6

Patients without prior irradiation did not receive any other treatment prior to intra-arterial short-term infusion chemotherapy