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Expression pattern of p63 in 106 NPC samples with different differentiation status
| Differentiated status | Weak staining | Strong staining | |
| Keratinizing squamous cell carcinoma | n = 8 | 3 (37.5%) | 5 (62.5%) |
| Differentiated non-keratinizing NPC | n = 48 | 5 (7.5%) | 43 (92.5%) |
| Undifferentiated non-keratinizing NPC | n = 50 | 0 (0%) | 50 (100%) |
(x2 = 14.934, df = 2, p = 0.001)
