Association between ischaemic stroke aetiology and leptomeningeal collateral status: a retrospective cohort study. Swiss Medical Weekly, [S. l.], v. 154, n. 7, p. 3584, 2024. DOI: 10.57187/s.3584. Disponível em: https://www.smw.ch/index.php/smw/article/view/3584. Acesso em: 21 oct. 2025.