T. J. A. Silva, C. S. Jerussalmy, J. M. Farfel, J. A. E. Curiati, and W. Jacob-Filho, “ Predictors of in-hospital mortality among older patients ”, Clinics, vol. 64, no. 7, pp. 613–618, Jan. 2009, doi: 10.1590/S1807-59322009000700002.