There was a statistically significant difference about incidence of cervical node metastasis which was staged based on the 7th and the 8th editions of AJCC Staging system.
Có sự khác biệt có ý nghĩa thống kê (p < 0,05) về tỷ lệ di căn hạch theo giai đoạn T khi phân chia theo AJCC 8th so với theo AJCC 7th.