Comparative analysis of the lethality pattern of Covid-19 and the response of BRICS countries to the pandemic in the context of multilateralism: An ecological study - Thalyta Cássia de Freitas Martins; Adelyne Maria Mendes Pereira; Cristiani Vieira Machado; Carlos Machado de Freitas; Raphael Mendonça Guimarães (PLoS ONE, 2025)