Correlation Between Work Duration of Gas Station Operators With Mucociliary Transport Time, Hair Pb Level, and Nasal Cytogram. Global Journal of Medical Research, [S. l.], v. 18, n. J1, p. 5–9, 2018. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/1538. Acesso em: 13 aug. 2026.