[1]
C. Vilaça, C. Fidalgo, A. Leite, and N. Oliveira, “Community acquired pneumonia and pneumonia severity index 20 (PSI-20): a retrospective study of the patients admitted to an internal medicine service, between 2007 and 2008”, RPMI, vol. 21, no. 2, pp. 53–60, Jun. 2014.