Risk factors associated with head and neck cancer in former smokers: a brazilian multicentric study - Gislon, Luciane Campos; Curado, Maria Paula; Lopez, Rossana Veronica Mendoza; Oliveira, Jose Carlos de; Podesta, Jose Roberto Vasconcelos de; Zeidler, Sandra Ventorin von; Brennan, Paul; Kowalski, Luiz Paulo (Cancer epidemiology, 2022)