SINDHU, N. S. .; L, M.; S, C. .; NATARAJAN, S. .; R, S. .; N, M. . Association between Forced Expiratory Volume in 1 second /Forced Vital Capacity ratio and Main Pulmonary Artery /Ascending Aorta ratio in Chronic Obstructive Pulmonary Disease Patients – A Hospital based Observational Study. Journal of Neonatal Surgery, Lahore, Pakistan, v. 14, n. 25S, p. 687–693, 2025. Disponível em: https://jneonatalsurg.com/index.php/jns/article/view/6195. Acesso em: 9 dec. 2025.