1. International Council for Standardization in Haematology Expert Panel on Blood Cell Sizing. Recommendation for reference method for determination by centrifugation of packed cell volume of blood. J Clin Pathol. 1980;33:1-2.
2. International Council for Standardization in Haematology Expert Panel on Cytometry. Reference method for the enumeration of erythrocytes and leucocytes. Clin Lab Haematol. 1994;16:131-138.
3. International Council for Standardization in Haematology Expert Panel on Cytometry. The assignment of values to fresh blood used for calibrating automated blood cell counters. Clin Lab Haematol. 1988;10:203-212.
4. Dacie JV, Lewis SM. Practical Haematology. 8th ed. Edinburgh, Scotland: Churchill Livingstone; 1995.
5. Groner W, Mayer K, Chapman ES. An indirect platelet count using a platelet-specific monoclonal antibody and flow cytometry can produce reliable platelet counts for assessing thrombocytopenia. Blood. 1994;84(suppl 1):687a.