Ferreira, M., I. Alen Coutinho, M. Lavrador, O. Duarte, H. . Esperto, and A. de Carvalho. “Fever of Unknown Origin in a Portuguese Tertiary Hospital: A Cohort Study”. Internal Medicine, vol. 29, no. 2, June 2022, pp. 133-9, doi:10.24950/rspmi.650.