Duarte, Rigoberto Fimia, Ricardo Osés Rodríguez, Pedro Y. de la Fé Rodríguez, Claudia Osés Llanes, María P. Zambrano Gavilanes, Luis E. Jerez Puebla, and Frank M. Wilford González. 2021. “COVID-19: Fitting a ROR Prediction Model for Cuba As Vaccination Advance”. European Journal of Applied Sciences 9 (5):56-65. https://doi.org/10.14738/aivp.95.10864.