Operationalization of Severe Maternal Morbidity surveillance in administrative databases of the Brazilian public and private health systems: Brazil 2015–2022 - Rosa Maria Soares Madeira Domingues; Marcos Augusto Bastos Dias; Luís Carlos Torres Guillen; Rejane Sobrino Pinheiro; Valeria Saraceni; Claudia Medina Coeli (PLoS ONE, 2026)