Fig. 3: Overall survival as per AJCC 7th and 8th edition in patients with OPSCC treated with radiotherapy with or without concurrent chemotherapy.
From: Long-term outcomes of consecutive patients of oropharyngeal cancer treated with radical radiotherapy

a AJCC 7th edition in 445 HPV-negative OPSCC, b AJCC 7th edition in 55 HPV-positive OPSCC, c AJCC 8th edition in 445 HPV-negative OPSCC, d AJCC 8th edition in 55 HPV-positive OPSCC.