Transfer learning for COVID-19 predictive modeling: A multicenter study of 12 hospitals - Savalli, Carine; Carneiro, André Henrique Alves; Barcellos Filho, Fabiano; Bigoto, Murilo Afonso Robiati; Wichmann, Roberta Moreira; Chiavegatto Filho, Alexandre Dias Porto (Annals of Epidemiology, 2025)