RT Journal Article SR Electronic T1 Collagens JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 44 OP 48 DO 10.1136/jcp.s3-12.1.44 VO s3-12 IS 1 A1 D. S. Jackson YR 1978 UL http://jcp.bmj.com/content/s3-12/1/44.abstract AB