Sousa, A. de A., Salles, J.M.P., Soares, J.M.A., Moraes, G.M. de, Carvalho, J.R. and Savassi-Rocha, P.R. 2010. Evolution of blood magnesium and phosphorus ion levels following thyroidectomy and correlation with total calcium values. São Paulo Medical Journal. 128, 5 (Sep. 2010), 268–271.