References
- Anido G. Preparation of quality control materials in clinical chemistry and haematology. Proc. roy. Soc. Med. 1975; 68: 624
- Barnett C. W. The unavoidable error in the differential count of the leukocytes of the blood. J. clin. Invest. 1933; 12: 77
- Benzel J. E., Egan J. J., Hart D. J., Christopher E. A. Evaluation of an automated differential leukocyte counting system. II. Normal cell identification. Am. J. clin. Path. 1974; 62: 530
- Bucher HJ. Qualitâtskontrolle im hâmatologischen Labor. Schweiz. med. Wschr. 1972; 102: 1857
- Burnett R. W. Accurate estimation of standard deviations for quantitative methods used in clinical chemistry. Clin. Chem. 1975; 21: 1935
- CAP Survey Manual. College of American Pathologists, Chicago. 1976
- Carstairs K. C., Burnie K. L., Ezer S., Ley D. C.H., McBride J. A., Murray J. F., Pantalony D., Pinkerton P. H., Wood D. E. Proficiency testing in hematological morphology in the Province of Ontario, Canada. Abstracts (I) of the XVII Congress of the International Society of Hematology. Paris 24–28 July, 1978; 174
- Dacie J. V., Lewis S. M. Practical haematologv.IV ed. Churchill, London 1968
- England J. M., Bain B. J. Total and differential leukocyte count. Br. J. Haematol. 1976; 33: 1
- Gilmer P. R., Koepke J. A. The reticulocyte. An approach to definition. Am. J. clin. Path. 1976; 66: 262
- , INSTAND-Ringversuche. Leitfaden, Dûsseldorf 1977.
- Keitges P. W., Koepke J. A. Report on hematology photomicrograph transparencies 1965–1969. Am. J. clin. Path. 1971; 55: 291
- Koepke J. A. Inter-laboratory trials: the quality control survey programme of the College of American Pathologists. Quality control in haematohgy, S. M Lewis, J. F. Coster. Academic Press, London 1975; 53
- Koepke J. A. A delineation of performance criteria for the differentiation of leukocytes. Am. J. clin. Path. 1977; 68: 202
- Megla G. K. The LARC automatic white blood cell analyzer. Acta Cytologica 1973; 17: 3
- Penner D. W., Merry C. C. Quality control of qualitative tests in haematology. Quality control in haematology, S. M. Lewis, J. F. Coster. Academic Press, London 1975; 137
- Riimke C. L. Variability of results in differential cell counts on blood smears. Triangle 1960; 4: 154
- Schork M. A., Greenhouse J. B., Williams G. W. Normality and other statistical considerations as they relate to selected quantitative measures in the CAP survey. Am. J. clin. Path. 1977; 68: 112
- Simmons A., Elbert G. Hemalog-D and manual differential leukocyte counts. A laboratory comparison of results obtained with blood of hospitalized patients. Am. J. clin. Path. 1975; 64: 512