Anti-Xa activity below range is related to thrombosis in patients with severe COVID-19 Pilar Marcos-Neira; Cristian Morales-Indiano; Mariana Fernández-Caballero; Teresa Tomasa-Irriguible; Luisa Bordejé-Laguna; Víctor Ruíz-Artola;

Dual therapy with remdesivir plus extended nirmatrelvir/ritonavir in immunocompromised and critically ill patient with suspected persistent COVID-19 infection: Case report Arturo Gámiz Rejano; Teresa López-Viñau; Cristina López Martín; Samira Marín Moreno; Isabel Machuca; Jorge Rodríguez-Gómez;

Abdominal aortic aneurysm complicated with aortocaval fistula Maria deAlba-Aparicio; Marta Relaño Mesa; María del Carmen Bermúdez-Ruiz;