Benseñor, I.M., Calich, A.L.G., Brunoni, A.R., Espírito-Santo, F.F., Mancini, R.L., Drager, L.F. and Lotufo, P.A. 2007. Accuracy of anemia diagnosis by physical examination. São Paulo Medical Journal. 125, 3 (May 2007), 170–173.