Fig. 1From: Induction chemotherapy for the individualised treatment of hypopharyngeal carcinoma with cervical oesophageal invasion: a retrospective cohort studyKaplan–Meier survival curves. a The difference in survival rates between groups A1 and A2 as examined using the log-rank test is not statistically significant (P = 0.7017). b The difference in survival rates between groups B1 and B2 as examined using the log-rank test is not statistically significant (P = 0.6381). c The difference in survival rates between groups A and B as examined using the log-rank test is not statistically significant (P = 0.7874)Back to article page