Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: Immunonephelometry monoclonal antibody was provided free of charge by Siemens. Siemens played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
1. Ledue TB, Weiner DL, Sipe JD, Poulin SE, Collins MF, Rifai N. Analytical evaluation of particle-enhanced immunonephelometric assays for C-reactive protein, serum amyloid A and mannose-binding protein in human serum. Ann Clin Biochem 1998;35:745–53.10.1177/000456329803500607Search in Google Scholar
2. Volanakis JE, Clements WL, Schrohenloher RE. C-reactive protein. Purification by affinity chromatography and physicochemical characterization. J Immunol Meth 1978;23:285–95.10.1016/0022-1759(78)90203-XSearch in Google Scholar
3. Brada D, Roth J. ‘Golden blot’. Detection of polyclonal and monoclonal antibodies bound to antigens on nitrocellulose by protein A-gold complexes. Anal Biochem 1984;142:79–83.10.1016/0003-2697(84)90518-9Search in Google Scholar
4. Roberts WL, Sedrick R, Moulton L, Spencer A, Rifai N. Evaluation of four automated high-sensitivity C-reactive protein methods: implications for clinical and epidemiological applications. Clin Chem 2000;46:461–8.10.1093/clinchem/46.4.461Search in Google Scholar
5. Highton J, Hessian P. A solid-phase enzyme immunoassay for C-reactive protein: clinical value and the effect of rheumatoid factor. J Immunol Methods 1984;68:185–92.10.1016/0022-1759(84)90149-2Search in Google Scholar
6. Berth M, Delanghe J. Protein precipitation as a possible important pitfall in the clinical chemistry analysis of blood samples containing monoclonal immunoglobulins: 2 case reports and a review of the literature. Acta Clin Belgica 2004;59:263–73.10.1179/acb.2004.039Search in Google Scholar
8. Rajkumar SV, Kyle RA, Therneau TM, Melton III LJ, Bradwell AR, Clark RJ, et al. Serum free light chain ratio is an independent risk factor for progression in monoclonal gammopathy of undetermined significance. Blood 2005;106:812–7.10.1182/blood-2005-03-1038Search in Google Scholar
9. Kyle RA, Benson J, Larson D, Therneau T, Dispenzieri A, Melton III LJ, et al. IgM monoclonal gammopathy of undetermined significance and smoldering Waldenström’s macroglobulinemia. Clin Lymphoma Myeloma 2009;9:17–8.10.3816/CLM.2009.n.002Search in Google Scholar
10. Hatzimichael EC, Christou L, Bai M, Kolios G, Kefala L, BourantasKL. Serum levels of IL-6 and its soluble receptor (sIL-6R) in Waldenström’s macroglobulinemia. Eur J Haematol 2001;66:1–6.10.1034/j.1600-0609.2001.00152.xSearch in Google Scholar
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