Modified SEIR epidemic model including asymptomatic and hospitalized cases with correct demographic evolution. - Antonio Rafael Selva Castañeda; Erick Eduardo Ramirez-Torres; Luis Eugenio Valdés-García; Hilda María Morandeira-Padrón; Diana Sedal Yanez; Juan I. Montijano; Luis Enrique Bergues Cabrales (Appl. Math. Comput., 2023)