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Clinical Chemistry 45: 154, 1999;
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(Clinical Chemistry. 1999;45:154.)
© 1999 American Association for Clinical Chemistry, Inc.

Letters

Correction: Evaluation of the Menarini-Arkray HA 8140 Hemoglobin A1c Analyzer

Jennifer A. Nisbeta and Frances G. Boa

St. Georges' Hospital, Department of Clinical Biochemistry, Blackshaw Road, London SW17 0QT, United Kingdom
a Author for correspondence. Fax 44 181 682 0744.


To the Editor:

John et al. (1) have evaluated the performance of the Menarini-Arkray HbA1c analyzer and have shown correlations of results on patient samples with the Bio-Rad Variant analyzer, an in-house HPLC method, a latex particle immunoassay, and an affinity chromatography method. The y = x lines in Fig. 2, b and d, do not appear to be in the correct position, probably because the x and y axes are numbered differently.


References

  1. John WG, Braconnier F, Miedema K, Aulesa C, Piras G. Evaluation of the Menarini-Arkray HA 8140 hemoglobin A1c analyzer. Clin Chem 1997;43:968-975.[Abstract/Free Full Text]

Dr. John responds:

W. Garry John

Department of Clinical Biochemistry, The Royal London Hospital, London E1 1BB, United Kingdom, Fax 44 171 377 7777, E-mail garry.john{at}btinternet.com
a Author for correspondence. Fax 44 181 682 0744.


To the Editor:

Drs. Nisbet and Boa are correct in their observation. The error occurred because the computer generated a 45-degree line without taking the axes into consideration. The addition of this line was at the reviewer's request, and was therefore done at a late stage in the production of the manuscript.

The statistical calculations and regression lines are correct.

The article's message is unchanged.





This Article
Right arrow Extract Freely available
Right arrow Full Text (PDF)
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the Editor about this paper
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Citing Articles
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Google Scholar
Right arrow Articles by Nisbet, J. A.
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Right arrow Articles by Nisbet, J. A.
Right arrow Articles by John, W. G.
Related Collections
Right arrow Endocrinology and Metabolism

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