| Grade 0 No (%) | Grade 1 No (%) | Grade 2 No (%) | Grade 3 No (%) | P-value |
1) At the End of Radiotherapy | 30 (55.6%) | 18 (33.3%) | 6 (11.1%) | 0 (0%) | P < 0.01* |
2) After 6 Weeks of Radiotherapy | 45 (83.3%) | 9 (16.7%) | 0 (0%) | 0 (0%) |