Association Of Classroom Ventilation And Overcrowding With Prevalence Of Upper Respiratory Tract Infections Among School Going Students. Pakistan Journal of Medical & Cardiological Review, [S. l.], v. 5, n. 1, p. 5742–5748, 2026. DOI: 10.66021/pakmcr1760. Disponível em: https://pakjmcr.com/index.php/1/article/view/1760. Acesso em: 16 sep. 2026.