RT Journal Article SR Electronic T1 Fibrosis of lung—an environmental disease? JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 158 OP 164 DO 10.1136/jcp.31.Suppl_12.158 VO 31 IS Suppl 12 A1 Elmes, P. C. A1 Wagner, J. C. YR 1978 UL http://jcp.bmj.com/content/31/Suppl_12/158.abstract AB