PT - JOURNAL ARTICLE AU - Rattenbury, J M TI - Principles and Applications of Laboratory Instrumentation AID - 10.1136/jcp.43.6.521-e DP - 1990 Jun 01 TA - Journal of Clinical Pathology PG - 521--522 VI - 43 IP - 6 4099 - http://jcp.bmj.com/content/43/6/521.5.short 4100 - http://jcp.bmj.com/content/43/6/521.5.full SO - J Clin Pathol1990 Jun 01; 43