The Correlation Between Type and Stage of Lung Cancer with The Chronic Obstructive Pulmonary Disease Group at Arifin Achmad Hospital, Pekanbaru. Jurnal Respirologi Indonesia, [S. l.], v. 45, n. 2, p. 121–126, 2025. DOI: 10.36497/jri.v45i2.512. Disponível em: http://www.jurnalrespirologi.org/index.php/jri/article/view/512. Acesso em: 3 mar. 2026.