SRIVASTAVA, B.; BASNYAT, R. B. Update on Chronic Obstructive Pulmonary Disease. Medical Journal of Shree Birendra Hospital, [S. l.], v. 6, p. 81–87, 2003. DOI: 10.3126/mjsbh.v6i0.21309. Disponível em: https://www.nepjol.info/index.php/MJSBH/article/view/21309. Acesso em: 19 may. 2024.