Figure 4

Changes in chemotherapy regime combined with radiotherapy during 2000–2011 based on prior therapy. The patients were divided into four groups according to performance of surgery and the timing during the study period. A: Surgery, 2000–2005 (n = 24); B: Surgery, 2006–2011 (n = 30); C: No surgery, 2000–2005 (n = 65); D: No surgery, 2006–2011 (n = 48).