>> Demetriou C.A., Achilleos S., Quattrocchi A., Gabel J., Critselis E., Constantinou C., Nicolaou N., Ambrosio G., Bennett C.M., Le Meur N., Critchley J.A., Mortensen L.H., Rodriguez-Llanes J.M., Chong M., Denissov G., Klepac P., Goldsmith L.P., Costa A.J.L., Hagen T.P., Chan Sun M., Huang Q., Pidmurniak N., Zucker I., Cuthbertson J., Burström B., Barron M., Eraen I., Stracci F., Calmon W., Martial C., Verstiuk O., Kaufman Z., Tao W., Kereselidze M., Chikhladze N., Polemitis A., Charalambous A. Impact of the COVID-19 pandemic on total, sex-and age-specific all-cause mortality in 20 countries worldwide during 2020: Results from the C-MOR project. International Journal of Epidemiology. 2023