Determination of IgG subclasses: A need for standardization Xavier Bossuyt, MD, PhD, Godelieve Mariën, MD, Isabelle Meyts, MD, Marijke Proesmans, MD, PhD, Kris De Boeck, MD, PhD  Journal of Allergy and Clinical Immunology  Volume 115, Issue 4, Pages 872-874 (April 2005) DOI: 10.1016/j.jaci.2005.01.039 Copyright © 2005 American Academy of Allergy, Asthma and Immunology Terms and Conditions

Fig 1 Ninety-four samples from children with increased susceptibility to respiratory infections were analyzed for IgG subclasses through use of reagents from Sanguin and from TBS. The line of identity is indicated, as is the assay-specific lower reference value for the age group 3 to 4 years old with respect to IgG1, IgG2, and IgG3 and for the age group 9 to 12 years old with respect to IgG4. Journal of Allergy and Clinical Immunology 2005 115, 872-874DOI: (10.1016/j.jaci.2005.01.039) Copyright © 2005 American Academy of Allergy, Asthma and Immunology Terms and Conditions