PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/jcp.26.7.552-d DP - 1973 Jul 01 TA - Journal of Clinical Pathology PG - 552--552 VI - 26 IP - 7 4099 - http://jcp.bmj.com/content/26/7/552.4.short 4100 - http://jcp.bmj.com/content/26/7/552.4.full SO - J Clin Pathol1973 Jul 01; 26