Drinking of maté and the risk of cancers of the upper aerodigestive tract in Latin America: a case–control study - Szymanska, K.; Matos, E.; Hung, R. J.; Wünsch Filho, Victor; Eluf-Neto, J.; Menezes, A.; Daudt, A. W.; Brennan, P.; Boffetta, P. (Cancer causes control, 2010)