Determinants of progression in idiopathic pulmonary fibrosis.
Schwartz DA, Van Fossen DS, Davis CS, Helmers RA, Dayton CS, Burmeister LF, Hunninghake GW. Determinants of progression in idiopathic pulmonary fibrosis. Am J Respir Crit Care Med. 1994 Feb; 149(2 Pt 1):444-9.