RT Journal Article SR Electronic T1 Role of papillomaviruses. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 269 OP 276 DO 10.1136/jcp.43.4.269 VO 43 IS 4 A1 Chang, F YR 1990 UL http://jcp.bmj.com/content/43/4/269.abstract AB