Sinus fungal balls caused by Syncephalastrum spp.: 2 clinical cases and literature review Virginia Cerpa Almenara; Teresa Nebreda Mayoral; María Álvarez Álvarez; Clara Rodrigo Pérez; Natalia Saiz Sigüenza; Maria de la Paz Sánchez Hernández;

Necrotizing fasciitis from a spider bite? Ander Uribarri García; Aitziber Aguinaga Pérez; Miguel Fernández Huerta; Carmen Ezpeleta Baquedano;

Coinfection and superinfection in SARS-CoV-2 pneumonia. Two underestimated threats. The need of empirical treatment under debate Rafael Zaragoza Crespo; Héctor Hernández-Garcés;