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. 2021 Dec 7;23(12):1646. doi: 10.3390/e23121646
c1=0, d1=0,
c2=3β1ρ, d2=3βρ1,
c3=0, d3=0,
c4=18ρ1β2, d4=181ρβ2,
c5=0, d5=0,
c6=1801ρβ3, d6=180ρ1β3,