Four cases of unexpected severe community-acquired pneumonia aetiology: Group A Streptococcus pyogenes disruption Mónica Talavera, Almudena Martínez, Carlos Vicent, Juan Frasquet, Ángel Orera, Paula Ramírez

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Oxidative stress in immunocompetent patients with severe community-acquired pneumonia. A pilot study S. Trefler, A. Rodríguez, I. Martín-Loeches, V. Sanchez, J. Marín, M. Llauradó, M. Romeu, E. Díaz, R. Nogués, M. Giralt