Do tobacco and alcohol modify protective effects of diet on oral carcinogenesis? - Toporcov, Tatiana Natasha; Tavares, Giovanna Emann; Rotundo, Ligia Drovandi Braga; Vaccarezza, Gabriela Fürst; Biazevic, Maria Gabriela Haye; Brasileiro, Rosana Sarmento; Carvalho, Marcos Brasilino de; Michaluart Junior, Pedro; Kowalski, Luiz Paulo; Antunes, José Leopoldo Ferreira (Nutrition and Cancer, 2012)