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. 2020 Jun 18;188:109807. doi: 10.1016/j.envres.2020.109807

Table 2e.

Analysis of variance for NO.

Sum of Squares df Mean Square F Sig.
Between Groups 4476.535 3 1492.178 8.923 .000
Within Groups 4013.311 24 167.221
Total 8489.846 27