Passive Tobacco Exposure in School Age Children with Recurrent Respiratory Illness using Salivary Cotinine Assay. Indian Journal of Public Health Research & Development, [S. l.], v. 11, n. 3, p. 931–935, 2020. DOI: 10.37506/ijphrd.v11i3.1491. Disponível em: https://medicopublication.com/index.php/ijphrd/article/view/1491. Acesso em: 6 may. 2026.