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. 2024 Nov 12;14:26998. doi: 10.1038/s41598-024-73756-3

Fig. 1.

Fig. 1

Unadjusted PM2.5 pollution effect on Head and Neck Cancer incidence and by subsite, Lag: years. Blue denotes statistical significance and orange denotes insignificant effect. By “statistically significant” it is meant that the PM2.5 is statistically significant at 5% level of significance (p value < 0.05).