1Bentey SA, Johnson TS, Sohier CH, et al. Flow- cyto-chemical differential leukocyte analysis with quantitation of neutrophil left shift: an evaluation of the Cobas- helios analyzer [J]. Am J Clin Pathol, 1994,102: 223.
2Buttarello M, Gadotti M, Lorenz C, et al. Evaluation of four automated hematology analyzers: a comparative study of differential counts (imprecision and inaccuracy) [J]. Am J Clin Pathol, 1992,97: 345.
