PT - JOURNAL ARTICLE AU - F D Lee TI - External quality assessment in histopathology: an overview. AID - 10.1136/jcp.42.10.1009 DP - 1989 Oct 01 TA - Journal of Clinical Pathology PG - 1009--1011 VI - 42 IP - 10 4099 - http://jcp.bmj.com/content/42/10/1009.short 4100 - http://jcp.bmj.com/content/42/10/1009.full SO - J Clin Pathol1989 Oct 01; 42