KEIKI YOKOO; MASANORI SHIRATORI; KIMIYUKI IKEDA; YASUAKI UMEDA; MITSUO OTSUKA; HIROTAKA NISHIKIORI; HIROFUMI CHIBA; HIROYUKI KOBA; HIROKI TAKAHASHI. Significance of Combined Emphysema in Idiopathic Pulmonary Fibrosis and Serum Surfactant Protein-D as a Prognostic Factor. Pulmonary Research and Respiratory Medicine, [S. l.], v. 4, n. 2, p. 24–32, 2017. DOI: 10.17140/PRRMOJ-4-135. Disponível em: https://openventio.us/index.php/PRRM/article/view/2161. Acesso em: 25 oct. 2026.