Alcohol and tobacco variables in the assessment of internal validity in an unmatched case-control study of occupational cancer in the Campania Region of Italy, 1988-1990. European Journal of Oncology and Environmental Health, [S. l.], v. 12, n. 1, p. 15–22, 2017. Disponível em: https://mattioli1885journals.com/index.php/EJOEH/article/view/4957.. Acesso em: 1 jul. 2024.