RT Journal Article SR Electronic T1 Immunohistochemical classification of T cell and NK cell neoplasms JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 892 OP 892 DO 10.1136/jcp.55.12.892 VO 55 IS 12 A1 J J Oudejans A1 P van der Valk YR 2002 UL http://jcp.bmj.com/content/55/12/892.abstract AB