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Point cloud population density and COVID-19 cases with model fitted simple regression lines. (A) Malaysia R2 = 0.614; (B) Northern region R2 = 0.477; (C) Central region R2 = 0.831; (D) Southern region R2 = 0.534; (E) East Coast region R2 = 0.251; (F) East Malaysia R2 = 0.157.
