A simple mathematical model for the evaluation of the long first wave of the COVID 19 pandemic in Brazil - Tang, Yuanji; Serdan, Tamires Duarte Afonso; Alecrim, Amanda L; Souza, Diego R; Nacano, Bruno R. M; Silva, Flaviano L. R; Silva, Eliane B; Poma, Sarah O; Felipe, Matheus Gennari; Bem, Patrícia N. Iser; Masi, Laureane Nunes; Tang, Sherry; et al. (Scientific Reports, 2021)