From: Preoperative concurrent chemotherapy with S-1 and radiotherapy for locally advanced squamous cell carcinoma of the oral cavity: Phase I trial
IV
III
IIb
IIa
I
Response rate
Level 1
2
1
100%
Level 2
Level 3
Level 4
Level 5
Level 6
4
66.7%
Level 7
Level 8
3
Total
13
12
90.0%