منشور في 2021
"…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead
cases of 0.99 for the dates considered. The verified and validated growth model of COVID-
19 for these countries showed the effects of the measures taken by the government and medical sectors to alleviate the pandemic effect and the effort to
decrease the spread of the virus in order to reduce the death rate. …"