IgAN.pt: External Validation of theInternational IgA Nephropathy PredictionTool in a Portuguese Cohort. Portuguese Kidney Journal, [S. l.], v. 39, n. 4, p. 141–149, 2025. DOI: 10.71749/pkj.116. Disponível em: https://pkj.spnefro.pt/index.php/journal/article/view/116.. Acesso em: 21 dec. 2025.