G. R., S.; A. J., A.; RAJ, A.; MATHEW, T. Clinico-epidemiological profile and disease severity of chronic obstructive pulmonary disease among patients in a primary care centre at central Kerala. International Journal Of Community Medicine And Public Health, [S. l.], v. 10, n. 6, p. 2151–2154, 2023. DOI: 10.18203/2394-6040.ijcmph20231695. Disponível em: https://www.ijcmph.com/index.php/ijcmph/article/view/11087. Acesso em: 27 oct. 2025.