Increasing incidence of thyroid cancer in São Paulo State, Brazil, 1981-2005 - Maciel, Léa Maria Zanini; Magalhães, P. K. R.; Barone, A. L.; Soares, Edson Garcia; Morais, R. H.; Cerri, Jesualdo; Simão, Gustavo Novelino (Annual Meeting on the American Thyroid Association, 2006)