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. 2023 Jun 13;25(6):934. doi: 10.3390/e25060934
P11,1=a1 P11,2=b1 P11,3=c1
P22,1=a2 P22,2=b2 P22,3=c2
P33,1=a3 P33,2=b3 P33,3=c3