Alves, M. R., & Keppeler, E. C. (2022). Severe acute respiratory syndrome and COVID-19 under the hierarchy of the urban network of municipalities in the state of Acre, western Brazilian Amazon region, 2020-2021: a cross-sectional study. São Paulo Medical Journal, 140(5), 668–675. Retrieved from https://periodicosapm.emnuvens.com.br/spmj/article/view/1044