Toufen Junior, C., A. L. D. Hovnanian, S. A. Franca, and C. R. R. Carvalho. “ Prevalence Rates of Infection in Intensive Care Units of a Tertiary Teaching Hospital ”. Revista Do Hospital Das Clínicas, vol. 58, no. 5, Jan. 2003, pp. 254-9, doi:10.1590/S0041-87812003000500004.