Sousa, R. M. C. de; Padilha, K. G.; Nogueira, L. de S.; Miyadahira, A. M. K.; Oliveira, V. C. R. de. Nursing Workload Among Adults, Elderly and Very Elderly Patients in the Intensive Care Unit. Rev. Esc. Enferm. USP 2009, 43 (spe2), 1284-1291. https://doi.org/10.1590/S0080-62342009000600024.