VASUDEVAN, B.; S., S. Prevalence of chronic respiratory symptoms in an urban population of North Kerala. International Journal Of Community Medicine And Public Health, [S. l.], v. 6, n. 4, p. 1670–1676, 2019. DOI: 10.18203/2394-6040.ijcmph20191403. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/4412. Acesso em: 17 nov. 2025.